16606899 has 6 divisors (see below), whose sum is σ = 23987756. Its totient is φ = 11071260.

The previous prime is 16606871. The next prime is 16606921. The reversal of 16606899 is 99860661.

It is not a de Polignac number, because 16606899 - 2⁷ = 16606771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16606859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 922597 + ... + 922614.

Almost surely, 2^16606899 is an apocalyptic number.

16606899 is a deficient number, since it is larger than the sum of its proper divisors (7380857).

16606899 is a wasteful number, since it uses less digits than its factorization.

16606899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845217 (or 1845214 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 16606899 is about 4075.1563160203. The cubic root of 16606899 is about 255.1307749054.

The spelling of 16606899 in words is "sixteen million, six hundred six thousand, eight hundred ninety-nine".