256168944192 has 56 divisors (see below), whose sum is σ = 774606097216. Its totient is φ = 73191126528.

The previous prime is 256168944179. The next prime is 256168944203. The reversal of 256168944192 is 291449861652.

It is a happy number.

256168944192 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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 in 7 ways as a sum of consecutive naturals, for example, 95299603 + ... + 95302290.

It is an arithmetic number, because the mean of its divisors is an integer number (13832251736).

Almost surely, 2^256168944192 is an apocalyptic number.

It is an amenable number.

256168944192 is an abundant number, since it is smaller than the sum of its proper divisors (518437153024).

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

256168944192 is a wasteful number, since it uses less digits than its factorization.

256168944192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190601915 (or 190601905 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 57.

The spelling of 256168944192 in words is "two hundred fifty-six billion, one hundred sixty-eight million, nine hundred forty-four thousand, one hundred ninety-two".