256507724562060 has 96 divisors (see below), whose sum is σ = 737658005982912. Its totient is φ = 66551101562880.

The previous prime is 256507724562013. The next prime is 256507724562073. The reversal of 256507724562060 is 60265427705652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64109940 + ... + 67993380.

It is an arithmetic number, because the mean of its divisors is an integer number (7683937562322).

Almost surely, 2^{256507724562060} is an apocalyptic number.

256507724562060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256507724562060 is an abundant number, since it is smaller than the sum of its proper divisors (481150281420852).

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

256507724562060 is a wasteful number, since it uses less digits than its factorization.

256507724562060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3913243 (or 3913241 counting only the distinct ones).

The product of its (nonzero) digits is 42336000, while the sum is 57.

The spelling of 256507724562060 in words is "two hundred fifty-six trillion, five hundred seven billion, seven hundred twenty-four million, five hundred sixty-two thousand, sixty".