23988165165 has 12 divisors (see below), whose sum is σ = 41579486364. Its totient is φ = 12793688064.

The previous prime is 23988165143. The next prime is 23988165181. The reversal of 23988165165 is 56156188932.

23988165165 is a `hidden beast` number, since 2 + 39 + 88 + 16 + 516 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13358967561 + 10629197604 = 115581^2 + 103098^2 .

It is not a de Polignac number, because 23988165165 - 2⁶ = 23988165101 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 266535124 + ... + 266535213.

It is an arithmetic number, because the mean of its divisors is an integer number (3464957197).

Almost surely, 2^23988165165 is an apocalyptic number.

It is an amenable number.

23988165165 is a deficient number, since it is larger than the sum of its proper divisors (17591321199).

23988165165 is a wasteful number, since it uses less digits than its factorization.

23988165165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533070348 (or 533070345 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The spelling of 23988165165 in words is "twenty-three billion, nine hundred eighty-eight million, one hundred sixty-five thousand, one hundred sixty-five".