A million million millions.
1,000,000 x 1,000,000 x 1,000,000 = 1,000,000,000,000,000,000
Which is a 1 followed by 18 zeros
Using scientific notation: 1 × 1018
We could also think of it as a million trillion or a billion billion.
Examples:
• our Milky Way Galaxy is about a quintillion meters wide
• the volume of Earth's oceans is 1.35 quintillion cubic meters
• there are about 10 quintillion insects on Earth
The prefix "exa-" means a quintillion. Example: an exameter is a quintillion meters.
Below is a cube made of a million smaller cubes. If each of the small cubes is worth a trillion dollars, then the whole cube is worth a quintillion dollars.
See: Million