256316243845336 has 16 divisors (see below), whose sum is σ = 480632476589640. Its totient is φ = 128147583421440.

The previous prime is 256316243845307. The next prime is 256316243845339. The reversal of 256316243845336 is 633548342613652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256316243845339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1317209286 + ... + 1317403861.

Almost surely, 2^{256316243845336} is an apocalyptic number.

It is an amenable number.

256316243845336 is a deficient number, since it is larger than the sum of its proper divisors (224316232744304).

256316243845336 is a wasteful number, since it uses less digits than its factorization.

256316243845336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634625314 (or 2634625310 counting only the distinct ones).

The product of its digits is 223948800, while the sum is 61.

The spelling of 256316243845336 in words is "two hundred fifty-six trillion, three hundred sixteen billion, two hundred forty-three million, eight hundred forty-five thousand, three hundred thirty-six".