165632713111172 has 6 divisors (see below), whose sum is σ = 289857247944558. Its totient is φ = 82816356555584.

The previous prime is 165632713111141. The next prime is 165632713111207. The reversal of 165632713111172 is 271111317236561.

It can be written as a sum of positive squares in only one way, i.e., 137225667920896 + 28407045190276 = 11714336^2 + 5329826^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20704089138893 + ... + 20704089138900.

It is an arithmetic number, because the mean of its divisors is an integer number (48309541324093).

Almost surely, 2^{165632713111172} is an apocalyptic number.

It is an amenable number.

165632713111172 is a deficient number, since it is larger than the sum of its proper divisors (124224534833386).

165632713111172 is a wasteful number, since it uses less digits than its factorization.

165632713111172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41408178277797 (or 41408178277795 counting only the distinct ones).

The product of its digits is 317520, while the sum is 47.

The spelling of 165632713111172 in words is "one hundred sixty-five trillion, six hundred thirty-two billion, seven hundred thirteen million, one hundred eleven thousand, one hundred seventy-two".