256011911337 has 32 divisors (see below), whose sum is σ = 442233809920. Its totient is φ = 127931918400.

The previous prime is 256011911327. The next prime is 256011911359. The reversal of 256011911337 is 733119110652.

It is not a de Polignac number, because 256011911337 - 2¹⁰ = 256011910313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 256011911295 and 256011911304.

It is not an unprimeable number, because it can be changed into a prime (256011911317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24673039 + ... + 24683412.

It is an arithmetic number, because the mean of its divisors is an integer number (13819806560).

Almost surely, 2^256011911337 is an apocalyptic number.

It is an amenable number.

256011911337 is a deficient number, since it is larger than the sum of its proper divisors (186221898583).

256011911337 is a wasteful number, since it uses less digits than its factorization.

256011911337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49356493.

The product of its (nonzero) digits is 34020, while the sum is 39.

The spelling of 256011911337 in words is "two hundred fifty-six billion, eleven million, nine hundred eleven thousand, three hundred thirty-seven".