16661822608 has 40 divisors (see below), whose sum is σ = 34704385920. Its totient is φ = 7724511360.

The previous prime is 16661822581. The next prime is 16661822623. The reversal of 16661822608 is 80622816661.

16661822608 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, 568783 + ... + 597358.

It is an arithmetic number, because the mean of its divisors is an integer number (867609648).

Almost surely, 2^16661822608 is an apocalyptic number.

It is an amenable number.

16661822608 is an abundant number, since it is smaller than the sum of its proper divisors (18042563312).

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

16661822608 is a wasteful number, since it uses less digits than its factorization.

16661822608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166215 (or 1166209 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 16661822608 in words is "sixteen billion, six hundred sixty-one million, eight hundred twenty-two thousand, six hundred eight".