320044505412 has 48 divisors (see below), whose sum is σ = 773029736640. Its totient is φ = 102935027328.

The previous prime is 320044505401. The next prime is 320044505471. The reversal of 320044505412 is 214505440023.

It is a self number, because there is not a number n which added to its sum of digits gives 320044505412.

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, 228078 + ... + 831930.

It is an arithmetic number, because the mean of its divisors is an integer number (16104786180).

Almost surely, 2^320044505412 is an apocalyptic number.

It is an amenable number.

320044505412 is an abundant number, since it is smaller than the sum of its proper divisors (452985231228).

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

320044505412 is a wasteful number, since it uses less digits than its factorization.

320044505412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605412 (or 605410 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 320044505412 its reverse (214505440023), we get a palindrome (534549945435).

The spelling of 320044505412 in words is "three hundred twenty billion, forty-four million, five hundred five thousand, four hundred twelve".