22172717166 has 32 divisors (see below), whose sum is σ = 48289046400. Its totient is φ = 6760464480.

The previous prime is 22172717131. The next prime is 22172717179. The reversal of 22172717166 is 66171727122.

It is a congruent 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, 3350100 + ... + 3356711.

It is an arithmetic number, because the mean of its divisors is an integer number (1509032700).

Almost surely, 2^22172717166 is an apocalyptic number.

22172717166 is an abundant number, since it is smaller than the sum of its proper divisors (26116329234).

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

22172717166 is a wasteful number, since it uses less digits than its factorization.

22172717166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6706864.

The product of its digits is 98784, while the sum is 42.

The spelling of 22172717166 in words is "twenty-two billion, one hundred seventy-two million, seven hundred seventeen thousand, one hundred sixty-six".