23603164520 has 32 divisors (see below), whose sum is σ = 57192284520. Its totient is φ = 8715014400.

The previous prime is 23603164469. The next prime is 23603164537. The reversal of 23603164520 is 2546130632.

It can be written as a sum of positive squares in 4 ways, for example, as 13488035044 + 10115129476 = 116138^2 + 100574^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22694831 + ... + 22695870.

Almost surely, 2^23603164520 is an apocalyptic number.

23603164520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23603164520 is an abundant number, since it is smaller than the sum of its proper divisors (33589120000).

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

23603164520 is a wasteful number, since it uses less digits than its factorization.

23603164520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45390725 (or 45390721 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 23603164520 in words is "twenty-three billion, six hundred three million, one hundred sixty-four thousand, five hundred twenty".