16890616828 has 6 divisors (see below), whose sum is σ = 29558579456. Its totient is φ = 8445308412.

The previous prime is 16890616801. The next prime is 16890616837. The reversal of 16890616828 is 82861609861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111327100 + ... + 2111327107.

Almost surely, 2^16890616828 is an apocalyptic number.

It is an amenable number.

16890616828 is a deficient number, since it is larger than the sum of its proper divisors (12667962628).

16890616828 is a wasteful number, since it uses less digits than its factorization.

16890616828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4222654211 (or 4222654209 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 55.

The spelling of 16890616828 in words is "sixteen billion, eight hundred ninety million, six hundred sixteen thousand, eight hundred twenty-eight".