23165185797 has 18 divisors (see below), whose sum is σ = 36037294566. Its totient is φ = 14254485840.

The previous prime is 23165185787. The next prime is 23165185801. The reversal of 23165185797 is 79758156132.

23165185797 is a `hidden beast` number, since 2 + 3 + 1 + 65 + 1 + 8 + 579 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16037436321 + 7127749476 = 126639^2 + 84426^2 .

It is not a de Polignac number, because 23165185797 - 2²⁰ = 23164137221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23165185727) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1639272 + ... + 1653342.

Almost surely, 2^23165185797 is an apocalyptic number.

It is an amenable number.

23165185797 is a deficient number, since it is larger than the sum of its proper divisors (12872108769).

23165185797 is an frugal number, since it uses more digits than its factorization.

23165185797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28161 (or 14087 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 54.

The spelling of 23165185797 in words is "twenty-three billion, one hundred sixty-five million, one hundred eighty-five thousand, seven hundred ninety-seven".