23165165307155 has 32 divisors (see below), whose sum is σ = 30374729256960. Its totient is φ = 16913201235840.

The previous prime is 23165165307143. The next prime is 23165165307169. The reversal of 23165165307155 is 55170356156132.

It is not a de Polignac number, because 23165165307155 - 2²² = 23165161112851 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59731607 + ... + 60118176.

It is an arithmetic number, because the mean of its divisors is an integer number (949210289280).

Almost surely, 2^{23165165307155} is an apocalyptic number.

23165165307155 is a deficient number, since it is larger than the sum of its proper divisors (7209563949805).

23165165307155 is a wasteful number, since it uses less digits than its factorization.

23165165307155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119849891.

The product of its (nonzero) digits is 2835000, while the sum is 50.

The spelling of 23165165307155 in words is "twenty-three trillion, one hundred sixty-five billion, one hundred sixty-five million, three hundred seven thousand, one hundred fifty-five".