16611091208 has 16 divisors (see below), whose sum is σ = 31147651500. Its totient is φ = 8305050816.

The previous prime is 16611091177. The next prime is 16611091319. The reversal of 16611091208 is 80219011661.

It can be written as a sum of positive squares in 2 ways, for example, as 16610569924 + 521284 = 128882^2 + 722^2 .

It is a super-2 number, since 2×16611091208² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108398 + ... + 212066.

Almost surely, 2^16611091208 is an apocalyptic number.

It is an amenable number.

16611091208 is a deficient number, since it is larger than the sum of its proper divisors (14536560292).

16611091208 is a wasteful number, since it uses less digits than its factorization.

16611091208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123704 (or 123700 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 35.

The spelling of 16611091208 in words is "sixteen billion, six hundred eleven million, ninety-one thousand, two hundred eight".