320564313330 has 32 divisors (see below), whose sum is σ = 780837257664. Its totient is φ = 84207938496.

The previous prime is 320564313301. The next prime is 320564313347. The reversal of 320564313330 is 33313465023.

It is a super-2 number, since 2×320564313330² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320564313291 and 320564313300.

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, 79740357 + ... + 79744376.

It is an arithmetic number, because the mean of its divisors is an integer number (24401164302).

Almost surely, 2^320564313330 is an apocalyptic number.

320564313330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

320564313330 is an abundant number, since it is smaller than the sum of its proper divisors (460272944334).

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

320564313330 is a wasteful number, since it uses less digits than its factorization.

320564313330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159484810.

The product of its (nonzero) digits is 58320, while the sum is 33.

Adding to 320564313330 its reverse (33313465023), we get a palindrome (353877778353).

The spelling of 320564313330 in words is "three hundred twenty billion, five hundred sixty-four million, three hundred thirteen thousand, three hundred thirty".