326320505522 has 18 divisors (see below), whose sum is σ = 538038956637. Its totient is φ = 148323463200.

The previous prime is 326320505521. The next prime is 326320505579. The reversal of 326320505522 is 225505023623.

It can be written as a sum of positive squares in 2 ways, for example, as 165568423801 + 160752081721 = 406901^2 + 400939^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=403931.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326320505521) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8868122 + ... + 8904842.

Almost surely, 2^326320505522 is an apocalyptic number.

326320505522 is a deficient number, since it is larger than the sum of its proper divisors (211718451115).

326320505522 is an frugal number, since it uses more digits than its factorization.

326320505522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73466 (or 36734 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

The spelling of 326320505522 in words is "three hundred twenty-six billion, three hundred twenty million, five hundred five thousand, five hundred twenty-two".