256522464466 has 8 divisors (see below), whose sum is σ = 389419645104. Its totient is φ = 126715916100.

The previous prime is 256522464449. The next prime is 256522464491. The reversal of 256522464466 is 664464225652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 772657860 + ... + 772658191.

It is an arithmetic number, because the mean of its divisors is an integer number (48677455638).

Almost surely, 2^256522464466 is an apocalyptic number.

256522464466 is a deficient number, since it is larger than the sum of its proper divisors (132897180638).

256522464466 is a wasteful number, since it uses less digits than its factorization.

256522464466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545316136.

The product of its digits is 16588800, while the sum is 52.

The spelling of 256522464466 in words is "two hundred fifty-six billion, five hundred twenty-two million, four hundred sixty-four thousand, four hundred sixty-six".