23664648906 has 32 divisors (see below), whose sum is σ = 52691486400. Its totient is φ = 7872709680.

The previous prime is 23664648883. The next prime is 23664648913. The reversal of 23664648906 is 60984646632.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403000 + ... + 457971.

It is an arithmetic number, because the mean of its divisors is an integer number (1646608950).

Almost surely, 2^23664648906 is an apocalyptic number.

23664648906 is an abundant number, since it is smaller than the sum of its proper divisors (29026837494).

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

23664648906 is a wasteful number, since it uses less digits than its factorization.

23664648906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861491 (or 861485 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 54.

The spelling of 23664648906 in words is "twenty-three billion, six hundred sixty-four million, six hundred forty-eight thousand, nine hundred six".