256407303662 has 32 divisors (see below), whose sum is σ = 411022035072. Its totient is φ = 119781103104.

The previous prime is 256407303643. The next prime is 256407303671. The reversal of 256407303662 is 266303704652.

It is a super-2 number, since 2×256407303662² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 511163 + ... + 879830.

It is an arithmetic number, because the mean of its divisors is an integer number (12844438596).

Almost surely, 2^256407303662 is an apocalyptic number.

256407303662 is a deficient number, since it is larger than the sum of its proper divisors (154614731410).

256407303662 is a wasteful number, since it uses less digits than its factorization.

256407303662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391132.

The product of its (nonzero) digits is 1088640, while the sum is 44.

The spelling of 256407303662 in words is "two hundred fifty-six billion, four hundred seven million, three hundred three thousand, six hundred sixty-two".