16304013666 has 64 divisors (see below), whose sum is σ = 37240790400. Its totient is φ = 5283465408.

The previous prime is 16304013653. The next prime is 16304013679. The reversal of 16304013666 is 66631040361.

16304013666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16304013653) and next prime (16304013679).

It is a super-2 number, since 2×16304013666² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16304013666.

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 31 ways as a sum of consecutive naturals, for example, 3220245 + ... + 3225303.

It is an arithmetic number, because the mean of its divisors is an integer number (581887350).

Almost surely, 2^16304013666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16304013666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18620395200).

16304013666 is an abundant number, since it is smaller than the sum of its proper divisors (20936776734).

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

16304013666 is a wasteful number, since it uses less digits than its factorization.

16304013666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6720 (or 6714 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The spelling of 16304013666 in words is "sixteen billion, three hundred four million, thirteen thousand, six hundred sixty-six".