16616994 has 16 divisors (see below), whose sum is σ = 34679232. Its totient is φ = 5298128.

The previous prime is 16616983. The next prime is 16617011. The reversal of 16616994 is 49961661.

It is a super-2 number, since 2×16616994² = 552248979192072, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60069 + ... + 60344.

It is an arithmetic number, because the mean of its divisors is an integer number (2167452).

Almost surely, 2^16616994 is an apocalyptic number.

16616994 is an abundant number, since it is smaller than the sum of its proper divisors (18062238).

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

16616994 is a wasteful number, since it uses less digits than its factorization.

16616994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120441.

The product of its digits is 69984, while the sum is 42.

The square root of 16616994 is about 4076.3947306413. The cubic root of 16616994 is about 255.1824607234.

The spelling of 16616994 in words is "sixteen million, six hundred sixteen thousand, nine hundred ninety-four".