16808390100 has 54 divisors (see below), whose sum is σ = 52684967790. Its totient is φ = 4482237120.

The previous prime is 16808390089. The next prime is 16808390141. The reversal of 16808390100 is 109380861.

16808390100 is a `hidden beast` number, since 168 + 0 + 8 + 390 + 100 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 876396816 + 15931993284 = 29604^2 + 126222^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9337095 + ... + 9338894.

Almost surely, 2^16808390100 is an apocalyptic number.

16808390100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16808390100 is an abundant number, since it is smaller than the sum of its proper divisors (35876577690).

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

16808390100 is a wasteful number, since it uses less digits than its factorization.

16808390100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18676009 (or 18675999 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 16808390100 in words is "sixteen billion, eight hundred eight million, three hundred ninety thousand, one hundred".