256501335741704 has 16 divisors (see below), whose sum is σ = 480970426664700. Its totient is φ = 128242555297792.

The previous prime is 256501335741659. The next prime is 256501335741727. The reversal of 256501335741704 is 407147533105652.

It can be written as a sum of positive squares in 2 ways, for example, as 244874613340900 + 11626722400804 = 15648470^2 + 3409798^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1013937257 + ... + 1014190200.

Almost surely, 2^{256501335741704} is an apocalyptic number.

It is an amenable number.

256501335741704 is a deficient number, since it is larger than the sum of its proper divisors (224469090922996).

256501335741704 is a wasteful number, since it uses less digits than its factorization.

256501335741704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028143272 (or 2028143268 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 53.

The spelling of 256501335741704 in words is "two hundred fifty-six trillion, five hundred one billion, three hundred thirty-five million, seven hundred forty-one thousand, seven hundred four".