256136111624 has 8 divisors (see below), whose sum is σ = 480255209310. Its totient is φ = 128068055808.

The previous prime is 256136111597. The next prime is 256136111689. The reversal of 256136111624 is 426111631652.

256136111624 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 148695072100 + 107441039524 = 385610^2 + 327782^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16008506969 + ... + 16008506984.

Almost surely, 2^256136111624 is an apocalyptic number.

It is an amenable number.

256136111624 is a deficient number, since it is larger than the sum of its proper divisors (224119097686).

256136111624 is a wasteful number, since it uses less digits than its factorization.

256136111624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32017013959 (or 32017013955 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The spelling of 256136111624 in words is "two hundred fifty-six billion, one hundred thirty-six million, one hundred eleven thousand, six hundred twenty-four".