23605212564 has 24 divisors (see below), whose sum is σ = 61198699520. Its totient is φ = 7868404152.

The previous prime is 23605212511. The next prime is 23605212569. The reversal of 23605212564 is 46521250632.

23605212564 is a `hidden beast` number, since 2 + 3 + 605 + 21 + 25 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23605212569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109283284 + ... + 109283499.

Almost surely, 2^23605212564 is an apocalyptic number.

It is an amenable number.

23605212564 is an abundant number, since it is smaller than the sum of its proper divisors (37593486956).

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

23605212564 is a wasteful number, since it uses less digits than its factorization.

23605212564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218566796 (or 218566788 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 23605212564 in words is "twenty-three billion, six hundred five million, two hundred twelve thousand, five hundred sixty-four".