25166515002664 has 32 divisors (see below), whose sum is σ = 54687799209600. Its totient is φ = 10633738731840.

The previous prime is 25166515002617. The next prime is 25166515002721. The reversal of 25166515002664 is 46620051566152.

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, 3164799219 + ... + 3164807170.

It is an arithmetic number, because the mean of its divisors is an integer number (1708993725300).

Almost surely, 2^{25166515002664} is an apocalyptic number.

It is an amenable number.

25166515002664 is an abundant number, since it is smaller than the sum of its proper divisors (29521284206936).

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

25166515002664 is a wasteful number, since it uses less digits than its factorization.

25166515002664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6329606473 (or 6329606469 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 49.

The spelling of 25166515002664 in words is "twenty-five trillion, one hundred sixty-six billion, five hundred fifteen million, two thousand, six hundred sixty-four".