25133400664 has 16 divisors (see below), whose sum is σ = 47196646200. Its totient is φ = 12547628352.

The previous prime is 25133400653. The next prime is 25133400701. The reversal of 25133400664 is 46600433152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2378397 + ... + 2388940.

Almost surely, 2^25133400664 is an apocalyptic number.

It is an amenable number.

25133400664 is a deficient number, since it is larger than the sum of its proper divisors (22063245536).

25133400664 is a wasteful number, since it uses less digits than its factorization.

25133400664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4768002 (or 4767998 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 25133400664 in words is "twenty-five billion, one hundred thirty-three million, four hundred thousand, six hundred sixty-four".