256064343160136 has 16 divisors (see below), whose sum is σ = 548709306771840. Its totient is φ = 109741861354320.

The previous prime is 256064343160127. The next prime is 256064343160159. The reversal of 256064343160136 is 631061343460652.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2286288778160 + ... + 2286288778271.

It is an arithmetic number, because the mean of its divisors is an integer number (34294331673240).

Almost surely, 2^{256064343160136} is an apocalyptic number.

It is an amenable number.

256064343160136 is an abundant number, since it is smaller than the sum of its proper divisors (292644963611704).

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

256064343160136 is a wasteful number, since it uses less digits than its factorization.

256064343160136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4572577556444 (or 4572577556440 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 50.

The spelling of 256064343160136 in words is "two hundred fifty-six trillion, sixty-four billion, three hundred forty-three million, one hundred sixty thousand, one hundred thirty-six".