16881916 has 12 divisors (see below), whose sum is σ = 30342088. Its totient is φ = 8212752.

The previous prime is 16881913. The next prime is 16881941. The reversal of 16881916 is 61918861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16881913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56886 + ... + 57181.

Almost surely, 2^16881916 is an apocalyptic number.

It is an amenable number.

16881916 is a deficient number, since it is larger than the sum of its proper divisors (13460172).

16881916 is a wasteful number, since it uses less digits than its factorization.

16881916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114108 (or 114106 counting only the distinct ones).

The product of its digits is 20736, while the sum is 40.

The square root of 16881916 is about 4108.7608837702. The cubic root of 16881916 is about 256.5314277894.

The spelling of 16881916 in words is "sixteen million, eight hundred eighty-one thousand, nine hundred sixteen".