tredecillion
/ˌtrɛdɪˈsɪljən/
noun
- The number represented by 1 followed by 42 zeros (10^42) in the American system, or 1 followed by 78 zeros (10^78) in the British system.
- A tredecillion is an unimaginably huge number, far more than the stars in the universe.
- The scientist said the number of atoms in the galaxy is less than a tredecillion.
- In math class, we learned that a tredecillion has 42 zeros after the 1.