156116565813 has 16 divisors (see below), whose sum is σ = 226686116160. Its totient is φ = 94992273024.

The previous prime is 156116565809. The next prime is 156116565827. The reversal of 156116565813 is 318565611651.

It is not a de Polignac number, because 156116565813 - 2² = 156116565809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156116565883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22485231 + ... + 22492172.

It is an arithmetic number, because the mean of its divisors is an integer number (14167882260).

Almost surely, 2^156116565813 is an apocalyptic number.

156116565813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

156116565813 is a deficient number, since it is larger than the sum of its proper divisors (70569550347).

156116565813 is a wasteful number, since it uses less digits than its factorization.

156116565813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44977508.

The product of its digits is 648000, while the sum is 48.

The spelling of 156116565813 in words is "one hundred fifty-six billion, one hundred sixteen million, five hundred sixty-five thousand, eight hundred thirteen".