23265505128 has 16 divisors (see below), whose sum is σ = 58163762880. Its totient is φ = 7755168368.

The previous prime is 23265505127. The next prime is 23265505129. The reversal of 23265505128 is 82150556232.

It is an interprime number because it is at equal distance from previous prime (23265505127) and next prime (23265505129).

It is not an unprimeable number, because it can be changed into a prime (23265505127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484698000 + ... + 484698047.

It is an arithmetic number, because the mean of its divisors is an integer number (3635235180).

Almost surely, 2^23265505128 is an apocalyptic number.

It is an amenable number.

23265505128 is an abundant number, since it is smaller than the sum of its proper divisors (34898257752).

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

23265505128 is a wasteful number, since it uses less digits than its factorization.

23265505128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969396056 (or 969396052 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 23265505128 in words is "twenty-three billion, two hundred sixty-five million, five hundred five thousand, one hundred twenty-eight".