320099891664960 has 336 divisors, whose sum is σ = 1203005658471552. Its totient is φ = 77476989542400.

The previous prime is 320099891664907. The next prime is 320099891665033. The reversal of 320099891664960 is 69466198990023.

320099891664960 is a `hidden beast` number, since 3 + 200 + 99 + 89 + 166 + 49 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11983612 + ... + 27996548.

Almost surely, 2^{320099891664960} is an apocalyptic number.

320099891664960 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320099891664960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601502829235776).

320099891664960 is an abundant number, since it is smaller than the sum of its proper divisors (882905766806592).

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

320099891664960 is a wasteful number, since it uses less digits than its factorization.

320099891664960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16013602 (or 16013589 counting only the distinct ones).

The product of its (nonzero) digits is 272097792, while the sum is 72.

The spelling of 320099891664960 in words is "three hundred twenty trillion, ninety-nine billion, eight hundred ninety-one million, six hundred sixty-four thousand, nine hundred sixty".