16320364660 has 12 divisors (see below), whose sum is σ = 34272765828. Its totient is φ = 6528145856.

The previous prime is 16320364637. The next prime is 16320364663. The reversal of 16320364660 is 6646302361.

It can be written as a sum of positive squares in 2 ways, for example, as 6245424784 + 10074939876 = 79028^2 + 100374^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16320364663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408009097 + ... + 408009136.

It is an arithmetic number, because the mean of its divisors is an integer number (2856063819).

Almost surely, 2^16320364660 is an apocalyptic number.

16320364660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16320364660 is an abundant number, since it is smaller than the sum of its proper divisors (17952401168).

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

16320364660 is a wasteful number, since it uses less digits than its factorization.

16320364660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816018242 (or 816018240 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 37.

The spelling of 16320364660 in words is "sixteen billion, three hundred twenty million, three hundred sixty-four thousand, six hundred sixty".