256366125711 has 16 divisors (see below), whose sum is σ = 379839532800. Its totient is φ = 170893711224.

The previous prime is 256366125709. The next prime is 256366125751. The reversal of 256366125711 is 117521663652.

256366125711 is a `hidden beast` number, since 2 + 5 + 6 + 3 + 66 + 12 + 571 + 1 = 666.

It is not a de Polignac number, because 256366125711 - 2¹ = 256366125709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256366125751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194491 + ... + 741996.

It is an arithmetic number, because the mean of its divisors is an integer number (23739970800).

Almost surely, 2^256366125711 is an apocalyptic number.

256366125711 is a deficient number, since it is larger than the sum of its proper divisors (123473407089).

256366125711 is a wasteful number, since it uses less digits than its factorization.

256366125711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946635 (or 946629 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The spelling of 256366125711 in words is "two hundred fifty-six billion, three hundred sixty-six million, one hundred twenty-five thousand, seven hundred eleven".