16990195 has 16 divisors (see below), whose sum is σ = 21214368. Its totient is φ = 13052160.

The previous prime is 16990177. The next prime is 16990213. The reversal of 16990195 is 59109961.

It is an interprime number because it is at equal distance from previous prime (16990177) and next prime (16990213).

It is not a de Polignac number, because 16990195 - 2⁵ = 16990163 is a prime.

It is a super-2 number, since 2×16990195² = 577333452276050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13117 + ... + 14353.

It is an arithmetic number, because the mean of its divisors is an integer number (1325898).

Almost surely, 2^16990195 is an apocalyptic number.

16990195 is a deficient number, since it is larger than the sum of its proper divisors (4224173).

16990195 is a wasteful number, since it uses less digits than its factorization.

16990195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350.

The product of its (nonzero) digits is 21870, while the sum is 40.

The square root of 16990195 is about 4121.9164232187. The cubic root of 16990195 is about 257.0787154098.

The spelling of 16990195 in words is "sixteen million, nine hundred ninety thousand, one hundred ninety-five".