256056143650 has 12 divisors (see below), whose sum is σ = 476264427282. Its totient is φ = 102422457440.

The previous prime is 256056143647. The next prime is 256056143659. The reversal of 256056143650 is 56341650652.

It can be written as a sum of positive squares in 3 ways, for example, as 121592387401 + 134463756249 = 348701^2 + 366693^2 .

It is a junction number, because it is equal to n+sod(n) for n = 256056143597 and 256056143606.

It is not an unprimeable number, because it can be changed into a prime (256056143659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2560561387 + ... + 2560561486.

Almost surely, 2^256056143650 is an apocalyptic number.

256056143650 is a deficient number, since it is larger than the sum of its proper divisors (220208283632).

256056143650 is a wasteful number, since it uses less digits than its factorization.

256056143650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121122885 (or 5121122880 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 256056143650 in words is "two hundred fifty-six billion, fifty-six million, one hundred forty-three thousand, six hundred fifty".