25312110660 has 96 divisors (see below), whose sum is σ = 78771813120. Its totient is φ = 6747922944.

The previous prime is 25312110653. The next prime is 25312110683. The reversal of 25312110660 is 6601121352.

25312110660 is a `hidden beast` number, since 2 + 531 + 21 + 106 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3548017 + ... + 3555143.

It is an arithmetic number, because the mean of its divisors is an integer number (820539720).

Almost surely, 2^25312110660 is an apocalyptic number.

25312110660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25312110660 is an abundant number, since it is smaller than the sum of its proper divisors (53459702460).

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

25312110660 is a wasteful number, since it uses less digits than its factorization.

25312110660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13722 (or 13714 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 25312110660 in words is "twenty-five billion, three hundred twelve million, one hundred ten thousand, six hundred sixty".