125856618246464 has 56 divisors (see below), whose sum is σ = 285952418704128. Its totient is φ = 53838849000960.

The previous prime is 125856618246439. The next prime is 125856618246521. The reversal of 125856618246464 is 464642816658521.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 125856618246394 and 125856618246403.

It is a congruent number.

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, 259397144 + ... + 259881879.

Almost surely, 2^{125856618246464} is an apocalyptic number.

125856618246464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

125856618246464 is an abundant number, since it is smaller than the sum of its proper divisors (160095800457664).

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

125856618246464 is an equidigital number, since it uses as much as digits as its factorization.

125856618246464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519279583 (or 519279573 counting only the distinct ones).

The product of its digits is 530841600, while the sum is 68.

The spelling of 125856618246464 in words is "one hundred twenty-five trillion, eight hundred fifty-six billion, six hundred eighteen million, two hundred forty-six thousand, four hundred sixty-four".