octillion
/ɑkˈtɪljən/
noun
- The number represented by 1 followed by 27 zeros (10^27) in the American system, or 1 followed by 48 zeros (10^48) in the British system.
- An octillion is an unimaginably huge number, far larger than the number of stars in the universe.
- In math class, we learned that an octillion has 27 zeros after the 1.
- The national debt is measured in trillions, not octillions.