23664554636 has 12 divisors (see below), whose sum is σ = 42031075128. Its totient is φ = 11655676032.

The previous prime is 23664554629. The next prime is 23664554651. The reversal of 23664554636 is 63645546632.

It is a super-2 number, since 2×23664554636² (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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44150021 + ... + 44150556.

It is an arithmetic number, because the mean of its divisors is an integer number (3502589594).

Almost surely, 2^23664554636 is an apocalyptic number.

It is an amenable number.

23664554636 is a deficient number, since it is larger than the sum of its proper divisors (18366520492).

23664554636 is a wasteful number, since it uses less digits than its factorization.

23664554636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88300648 (or 88300646 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 50.

The spelling of 23664554636 in words is "twenty-three billion, six hundred sixty-four million, five hundred fifty-four thousand, six hundred thirty-six".