16722920684 has 24 divisors (see below), whose sum is σ = 30602976768. Its totient is φ = 7980771920.

The previous prime is 16722920653. The next prime is 16722920717. The reversal of 16722920684 is 48602922761.

16722920684 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 7 ways as a sum of consecutive naturals, for example, 151652 + ... + 237579.

It is an arithmetic number, because the mean of its divisors is an integer number (1275124032).

Almost surely, 2^16722920684 is an apocalyptic number.

It is an amenable number.

16722920684 is a deficient number, since it is larger than the sum of its proper divisors (13880056084).

16722920684 is a wasteful number, since it uses less digits than its factorization.

16722920684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389725 (or 389723 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 16722920684 in words is "sixteen billion, seven hundred twenty-two million, nine hundred twenty thousand, six hundred eighty-four".