320220553500312 has 32 divisors (see below), whose sum is σ = 800552610139200. Its totient is φ = 106740020981664.

The previous prime is 320220553500247. The next prime is 320220553500349. The reversal of 320220553500312 is 213005355022023.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6319239 + ... + 26083977.

It is an arithmetic number, because the mean of its divisors is an integer number (25017269066850).

Almost surely, 2^{320220553500312} is an apocalyptic number.

It is an amenable number.

320220553500312 is an abundant number, since it is smaller than the sum of its proper divisors (480332056638888).

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

320220553500312 is a wasteful number, since it uses less digits than its factorization.

320220553500312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20439815 (or 20439811 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 33.

The spelling of 320220553500312 in words is "three hundred twenty trillion, two hundred twenty billion, five hundred fifty-three million, five hundred thousand, three hundred twelve".