23664929136 has 20 divisors (see below), whose sum is σ = 61134400392. Its totient is φ = 7888309696.

The previous prime is 23664929111. The next prime is 23664929147. The reversal of 23664929136 is 63192946632.

It is a happy number.

It is a congruent number.

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, 246509631 + ... + 246509726.

Almost surely, 2^23664929136 is an apocalyptic number.

It is an amenable number.

23664929136 is an abundant number, since it is smaller than the sum of its proper divisors (37469471256).

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

23664929136 is a wasteful number, since it uses less digits than its factorization.

23664929136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493019368 (or 493019362 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 51.

The spelling of 23664929136 in words is "twenty-three billion, six hundred sixty-four million, nine hundred twenty-nine thousand, one hundred thirty-six".