It's about 200,000,000 times as heavy as an Eye (Human).
In other words, 1,590,000 kilograms is 220,000,000 times the weight of an Eye (Human), and the weight of an Eye (Human) is 0.0000000045 times that amount.(adult)
A fully developed eye (in a person over the age of thirteen), weighs about 0.0071 kilograms. The pupil of the eye varies depending on the amount of light it is exposed to, but typically measures about 4 mm across.
It's about 300,000,000 times as heavy as a Quarter.
In other words, 1,590,000 kilograms is 280,400,000 times the weight of a Quarter, and the weight of a Quarter is 0.000000003566 times that amount.(United States quarter-dollar coin) (a.k.a. Quarter dollar, a.k.a. America the Beautiful quarter, a.k.a. two bits)
The America the Beautiful series quarters, which began to enter circulation in 2017, weigh 0.00567 kilograms each. In answer to the common riddle, there are 119 ridges around the edge of the coin in its current design.
It's about 300,000,000 times as heavy as a sheet of Paper.
In other words, the weight of a sheet of Paper is 0.000000003 times 1,590,000 kilograms.(for US Letter, a.k.a. ANSI A; 215.9mm by 279.4mm (8.5 in x 11 in); 20lb)
The weight of a ream (500 sheets) of 9 kilograms, 8.5 inch x 11 inch paper is 2 kg, each sheet weighing 0.005 kilograms. Paper of this size has a thickness of 0.004 caliper (0.1 mm).
It's about 400,000,000 times as heavy as a Die (Dice).
In other words, 1,590,000 kilograms is 390,000,000 times the weight of a Die (Dice), and the weight of a Die (Dice) is 0.0000000026 times that amount.(for six-sided, 16 mm, rounded cube)
A die, of the size most commonly used in board games and casinos, typically weight 0.0041 kilograms. The use of dice and dice-like tools predates written history, with the oldest known examples belonging to a 5,000-year old backgammon set uncovered during an archaeological dig in modern-day Iran.
It's about 650,000,000 times as heavy as a Penny.
In other words, the weight of a Penny is 0.0000000016 times 1,590,000 kilograms.(United States) (formally one-cent coin) (Union shield design, 2010-present)
The weight of a United States penny is 0.0025 kilograms. According to a 2010 report by the United States Mint, the cost of manufacturing and distributing a penny is $0.0179 — more than its face-value.
It's about 900,000,000 times as heavy as a Playing Card.
In other words, 1,590,000 kilograms is 880,000,000 times the weight of a Playing Card, and the weight of a Playing Card is 0.0000000011 times that amount.(ISO 216 B8 size, 2.5" x 3.5")
A single ISO 216 B8-size playing card weighs 0.0018 kilograms. Although this size is the most common home playing card, many casinos use "bridge size" cards — 2,640 sq. mm (4.036 sq. in) smaller in area.
It's about 1,000,000,000 times as heavy as a Paper Clip.
In other words, 1,590,000 kilograms is 1,100,000,000 times the weight of a Paper Clip, and the weight of a Paper Clip is 0.00000000091 times that amount.(average)
Notwithstanding the tremendous variation in sizes and materials, a typical paperclip weighs about 0.0014 kilograms. The country of Norway has used the paper clip as something of a national symbol since the end of World War II based on the erroneous notion that the paperclip was invented by a Norwegian, Johan Vaaler. However, the paperclip had already been in existence for at least 30 years by the time of Vaaler patented his paperclip design.