16816888976 has 20 divisors (see below), whose sum is σ = 33197492412. Its totient is φ = 8249794176.

The previous prime is 16816888939. The next prime is 16816889041. The reversal of 16816888976 is 67988861861.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15133920400 + 1682968576 = 123020^2 + 41024^2 .

It is a super-2 number, since 2×16816888976² (a number of 21 digits) contains 22 as substring.

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, 9914771 + ... + 9916466.

Almost surely, 2^16816888976 is an apocalyptic number.

16816888976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16816888976 is a deficient number, since it is larger than the sum of its proper divisors (16380603436).

16816888976 is a wasteful number, since it uses less digits than its factorization.

16816888976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19831298 (or 19831292 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 68.

The spelling of 16816888976 in words is "sixteen billion, eight hundred sixteen million, eight hundred eighty-eight thousand, nine hundred seventy-six".