12523600664 has 32 divisors (see below), whose sum is σ = 24878430720. Its totient is φ = 5889808896.

The previous prime is 12523600657. The next prime is 12523600673. The reversal of 12523600664 is 46600632521.

It is a happy number.

It is a congruent number.

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, 198482 + ... + 253854.

It is an arithmetic number, because the mean of its divisors is an integer number (777450960).

Almost surely, 2^12523600664 is an apocalyptic number.

It is an amenable number.

12523600664 is a deficient number, since it is larger than the sum of its proper divisors (12354830056).

12523600664 is a wasteful number, since it uses less digits than its factorization.

12523600664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57059 (or 57055 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 12523600664 in words is "twelve billion, five hundred twenty-three million, six hundred thousand, six hundred sixty-four".