165600615016156 has 12 divisors (see below), whose sum is σ = 289801256937192. Its totient is φ = 82800255891248.

The previous prime is 165600615016103. The next prime is 165600615016211. The reversal of 165600615016156 is 651610516006561.

It is a super-2 number, since 2×165600615016156² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5170630 + ... + 18919213.

It is an arithmetic number, because the mean of its divisors is an integer number (24150104744766).

Almost surely, 2^{165600615016156} is an apocalyptic number.

It is an amenable number.

165600615016156 is a deficient number, since it is larger than the sum of its proper divisors (124200641921036).

165600615016156 is a wasteful number, since it uses less digits than its factorization.

165600615016156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25808420 (or 25808418 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 49.

The spelling of 165600615016156 in words is "one hundred sixty-five trillion, six hundred billion, six hundred fifteen million, sixteen thousand, one hundred fifty-six".