320243504545404 has 36 divisors (see below), whose sum is σ = 883095724656600. Its totient is φ = 97043486225760.

The previous prime is 320243504545399. The next prime is 320243504545483. The reversal of 320243504545404 is 404545405342023.

320243504545404 is a `hidden beast` number, since 3 + 2 + 0 + 2 + 4 + 3 + 50 + 4 + 54 + 540 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 320243504545404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404347858879 + ... + 404347859670.

Almost surely, 2^{320243504545404} is an apocalyptic number.

It is an amenable number.

320243504545404 is an abundant number, since it is smaller than the sum of its proper divisors (562852220111196).

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

320243504545404 is a wasteful number, since it uses less digits than its factorization.

320243504545404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808695718570 (or 808695718565 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 45.

Adding to 320243504545404 its reverse (404545405342023), we get a palindrome (724788909887427).

The spelling of 320243504545404 in words is "three hundred twenty trillion, two hundred forty-three billion, five hundred four million, five hundred forty-five thousand, four hundred four".