16816566004 has 12 divisors (see below), whose sum is σ = 33633132064. Its totient is φ = 7207099704.

The previous prime is 16816565981. The next prime is 16816566017. The reversal of 16816566004 is 40066561861.

16816566004 is an admirable number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300295794 + ... + 300295849.

Almost surely, 2^16816566004 is an apocalyptic number.

16816566004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16816566004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16816566004 is a wasteful number, since it uses less digits than its factorization.

16816566004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600591654 (or 600591652 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 16816566004 in words is "sixteen billion, eight hundred sixteen million, five hundred sixty-six thousand, four".