sexdecillion
/ˌsɛksdɪˈsɪliən/
noun
- The number represented by 1 followed by 51 zeros (10⁵¹) in the American system, or 1 followed by 96 zeros (10⁹⁶) in the British system.
- A sexdecillion is such a huge number that it is rarely used outside of mathematics.
- The estimated number of atoms in the observable universe is far less than a sexdecillion.
- In the American numbering system, a sexdecillion has 51 zeros after the 1.