320320886320 has 20 divisors (see below), whose sum is σ = 744746060880. Its totient is φ = 128128354496.

The previous prime is 320320886299. The next prime is 320320886351. The reversal of 320320886320 is 23688023023.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 320320886320.

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 3 ways as a sum of consecutive naturals, for example, 2002005460 + ... + 2002005619.

It is an arithmetic number, because the mean of its divisors is an integer number (37237303044).

Almost surely, 2^320320886320 is an apocalyptic number.

It is an amenable number.

320320886320 is an abundant number, since it is smaller than the sum of its proper divisors (424425174560).

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

320320886320 is a wasteful number, since it uses less digits than its factorization.

320320886320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004011092 (or 4004011086 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 320320886320 in words is "three hundred twenty billion, three hundred twenty million, eight hundred eighty-six thousand, three hundred twenty".