25660133060 has 24 divisors (see below), whose sum is σ = 53900925120. Its totient is φ = 10261263584.

The previous prime is 25660133053. The next prime is 25660133077. The reversal of 25660133060 is 6033106652.

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, 98114 + ... + 246873.

It is an arithmetic number, because the mean of its divisors is an integer number (2245871880).

Almost surely, 2^25660133060 is an apocalyptic number.

25660133060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25660133060 is an abundant number, since it is smaller than the sum of its proper divisors (28240792060).

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

25660133060 is a wasteful number, since it uses less digits than its factorization.

25660133060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348715 (or 348713 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The spelling of 25660133060 in words is "twenty-five billion, six hundred sixty million, one hundred thirty-three thousand, sixty".