23155540032 has 56 divisors (see below), whose sum is σ = 61313381056. Its totient is φ = 7712506368.

The previous prime is 23155540021. The next prime is 23155540043. The reversal of 23155540032 is 23004555132.

It is an interprime number because it is at equal distance from previous prime (23155540021) and next prime (23155540043).

It is a super-2 number, since 2×23155540032² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203898 + ... + 296454.

Almost surely, 2^23155540032 is an apocalyptic number.

It is an amenable number.

23155540032 is an abundant number, since it is smaller than the sum of its proper divisors (38157841024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23155540032 is a wasteful number, since it uses less digits than its factorization.

23155540032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93875 (or 93865 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 23155540032 in words is "twenty-three billion, one hundred fifty-five million, five hundred forty thousand, thirty-two".