22166298894 has 16 divisors (see below), whose sum is σ = 44994279168. Its totient is φ = 7278486072.

The previous prime is 22166298877. The next prime is 22166298923. The reversal of 22166298894 is 49889266122.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27569622 + ... + 27570425.

It is an arithmetic number, because the mean of its divisors is an integer number (2812142448).

Almost surely, 2^22166298894 is an apocalyptic number.

22166298894 is an abundant number, since it is smaller than the sum of its proper divisors (22827980274).

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

22166298894 is a wasteful number, since it uses less digits than its factorization.

22166298894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55140119.

The product of its digits is 5971968, while the sum is 57.

The spelling of 22166298894 in words is "twenty-two billion, one hundred sixty-six million, two hundred ninety-eight thousand, eight hundred ninety-four".