320005441142320 has 80 divisors (see below), whose sum is σ = 787849799296320. Its totient is φ = 120461672005632.

The previous prime is 320005441142297. The next prime is 320005441142347. The reversal of 320005441142320 is 23241144500023.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4248301 + ... + 25652659.

It is an arithmetic number, because the mean of its divisors is an integer number (9848122491204).

Almost surely, 2^{320005441142320} is an apocalyptic number.

It is an amenable number.

320005441142320 is an abundant number, since it is smaller than the sum of its proper divisors (467844358154000).

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

320005441142320 is a wasteful number, since it uses less digits than its factorization.

320005441142320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21415382 (or 21415376 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 320005441142320 its reverse (23241144500023), we get a palindrome (343246585642343).

The spelling of 320005441142320 in words is "three hundred twenty trillion, five billion, four hundred forty-one million, one hundred forty-two thousand, three hundred twenty".