12557308172976 has 80 divisors (see below), whose sum is σ = 41193286080000. Its totient is φ = 3587802334272.

The previous prime is 12557308172951. The next prime is 12557308173017. The reversal of 12557308172976 is 67927180375521.

It is a happy number.

12557308172976 is a `hidden beast` number, since 1 + 2 + 557 + 3 + 0 + 8 + 1 + 7 + 2 + 9 + 76 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2076271476 + ... + 2076277523.

It is an arithmetic number, because the mean of its divisors is an integer number (514916076000).

Almost surely, 2^{12557308172976} is an apocalyptic number.

12557308172976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12557308172976 is an abundant number, since it is smaller than the sum of its proper divisors (28635977907024).

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

12557308172976 is a wasteful number, since it uses less digits than its factorization.

12557308172976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4152549023 (or 4152549011 counting only the distinct ones).

The product of its (nonzero) digits is 44452800, while the sum is 63.

The spelling of 12557308172976 in words is "twelve trillion, five hundred fifty-seven billion, three hundred eight million, one hundred seventy-two thousand, nine hundred seventy-six".