octodecillion

(ŏkˌtō-dĭ-sĭlˈyən)

1. The cardinal number equal to 10⁵⁷.
2. Chiefly British The cardinal number equal to 10¹⁰⁸.

Related Forms:

• ocˌto·de·cilˈlion adjective

• ocˌto·de·cilˈlionth adjective, adv. & n.