12557825660 has 48 divisors (see below), whose sum is σ = 28103556096. Its totient is φ = 4702496832.

The previous prime is 12557825617. The next prime is 12557825669. The reversal of 12557825660 is 6652875521.

12557825660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12557825669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268802 + ... + 312041.

It is an arithmetic number, because the mean of its divisors is an integer number (585490752).

Almost surely, 2^12557825660 is an apocalyptic number.

12557825660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12557825660 is an abundant number, since it is smaller than the sum of its proper divisors (15545730436).

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

12557825660 is a wasteful number, since it uses less digits than its factorization.

12557825660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580922 (or 580920 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 47.

The spelling of 12557825660 in words is "twelve billion, five hundred fifty-seven million, eight hundred twenty-five thousand, six hundred sixty".