20976631170 has 32 divisors (see below), whose sum is σ = 54920635200. Its totient is φ = 5085243840.

The previous prime is 20976631157. The next prime is 20976631229. The reversal of 20976631170 is 7113667902.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31782445 + ... + 31783104.

It is an arithmetic number, because the mean of its divisors is an integer number (1716269850).

Almost surely, 2^20976631170 is an apocalyptic number.

20976631170 is an abundant number, since it is smaller than the sum of its proper divisors (33944004030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20976631170 is a wasteful number, since it uses less digits than its factorization.

20976631170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63565570.

The product of its (nonzero) digits is 95256, while the sum is 42.

The spelling of 20976631170 in words is "twenty billion, nine hundred seventy-six million, six hundred thirty-one thousand, one hundred seventy".