320468375556 has 72 divisors (see below), whose sum is σ = 934785930624. Its totient is φ = 90673430400.

The previous prime is 320468375543. The next prime is 320468375587. The reversal of 320468375556 is 655573864023.

320468375556 is a `hidden beast` number, since 3 + 2 + 0 + 4 + 6 + 83 + 7 + 5 + 556 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6147345 + ... + 6199256.

Almost surely, 2^320468375556 is an apocalyptic number.

320468375556 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

320468375556 is an abundant number, since it is smaller than the sum of its proper divisors (614317555068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320468375556 is a wasteful number, since it uses less digits than its factorization.

320468375556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12346721 (or 12346716 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 54.

The spelling of 320468375556 in words is "three hundred twenty billion, four hundred sixty-eight million, three hundred seventy-five thousand, five hundred fifty-six".