320213724055440 has 80 divisors (see below), whose sum is σ = 1002490886673216. Its totient is φ = 84544877632000.

The previous prime is 320213724055429. The next prime is 320213724055499. The reversal of 320213724055440 is 44550427312023.

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

It is a junction number, because it is equal to n+sod(n) for n = 320213724055392 and 320213724055401.

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, 6605044326 + ... + 6605092805.

Almost surely, 2^{320213724055440} is an apocalyptic number.

320213724055440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320213724055440 is an abundant number, since it is smaller than the sum of its proper divisors (682277162617776).

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

320213724055440 is a wasteful number, since it uses less digits than its factorization.

320213724055440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13210137248 (or 13210137242 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 42.

The spelling of 320213724055440 in words is "three hundred twenty trillion, two hundred thirteen billion, seven hundred twenty-four million, fifty-five thousand, four hundred forty".