16644902764 has 36 divisors (see below), whose sum is σ = 33863801104. Its totient is φ = 7012581408.

The previous prime is 16644902713. The next prime is 16644902779. The reversal of 16644902764 is 46720944661.

It is a happy number.

16644902764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 12082 + ... + 182854.

Almost surely, 2^16644902764 is an apocalyptic number.

16644902764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16644902764 is an abundant number, since it is smaller than the sum of its proper divisors (17218898340).

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

16644902764 is a wasteful number, since it uses less digits than its factorization.

16644902764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170902 (or 170841 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 16644902764 in words is "sixteen billion, six hundred forty-four million, nine hundred two thousand, seven hundred sixty-four".