23265220128 has 24 divisors (see below), whose sum is σ = 61071203088. Its totient is φ = 7755073344.

The previous prime is 23265220123. The next prime is 23265220129. The reversal of 23265220128 is 82102256232.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (23265220123) 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, 121172926 + ... + 121173117.

It is an arithmetic number, because the mean of its divisors is an integer number (2544633462).

Almost surely, 2^23265220128 is an apocalyptic number.

It is an amenable number.

23265220128 is an abundant number, since it is smaller than the sum of its proper divisors (37805982960).

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

23265220128 is a wasteful number, since it uses less digits than its factorization.

23265220128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242346056 (or 242346048 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 23265220128 in words is "twenty-three billion, two hundred sixty-five million, two hundred twenty thousand, one hundred twenty-eight".