320383405504 has 28 divisors (see below), whose sum is σ = 635936374048. Its totient is φ = 160147468800.

The previous prime is 320383405493. The next prime is 320383405513. The reversal of 320383405504 is 405504383023.

It is a congruent number.

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, 456957 + ... + 921724.

Almost surely, 2^320383405504 is an apocalyptic number.

It is an amenable number.

320383405504 is a deficient number, since it is larger than the sum of its proper divisors (315552968544).

320383405504 is a wasteful number, since it uses less digits than its factorization.

320383405504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382324 (or 1382314 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 320383405504 its reverse (405504383023), we get a palindrome (725887788527).

The spelling of 320383405504 in words is "three hundred twenty billion, three hundred eighty-three million, four hundred five thousand, five hundred four".