256588454067 has 32 divisors (see below), whose sum is σ = 374522019840. Its totient is φ = 154966127520.

The previous prime is 256588454047. The next prime is 256588454069. The reversal of 256588454067 is 760454885652.

It is not a de Polignac number, because 256588454067 - 2¹⁶ = 256588388531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 256588454067.

It is not an unprimeable number, because it can be changed into a prime (256588454069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17420368 + ... + 17435090.

It is an arithmetic number, because the mean of its divisors is an integer number (11703813120).

Almost surely, 2^256588454067 is an apocalyptic number.

256588454067 is a deficient number, since it is larger than the sum of its proper divisors (117933565773).

256588454067 is a wasteful number, since it uses less digits than its factorization.

256588454067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16543.

The product of its (nonzero) digits is 64512000, while the sum is 60.

The spelling of 256588454067 in words is "two hundred fifty-six billion, five hundred eighty-eight million, four hundred fifty-four thousand, sixty-seven".