216107178752 has 18 divisors (see below), whose sum is σ = 431370189348. Its totient is φ = 108053589248.

The previous prime is 216107178731. The next prime is 216107178769. The reversal of 216107178752 is 257871701612.

It is a junction number, because it is equal to n+sod(n) for n = 216107178697 and 216107178706.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422084078 + ... + 422084589.

Almost surely, 2^216107178752 is an apocalyptic number.

It is an amenable number.

216107178752 is a deficient number, since it is larger than the sum of its proper divisors (215263010596).

216107178752 is an frugal number, since it uses more digits than its factorization.

216107178752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844168683 (or 844168669 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 47.

The spelling of 216107178752 in words is "two hundred sixteen billion, one hundred seven million, one hundred seventy-eight thousand, seven hundred fifty-two".