22116555164 has 12 divisors (see below), whose sum is σ = 42222514488. Its totient is φ = 10052979600.

The previous prime is 22116555143. The next prime is 22116555169. The reversal of 22116555164 is 46155561122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22116555169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251324447 + ... + 251324534.

It is an arithmetic number, because the mean of its divisors is an integer number (3518542874).

Almost surely, 2^22116555164 is an apocalyptic number.

It is an amenable number.

22116555164 is a deficient number, since it is larger than the sum of its proper divisors (20105959324).

22116555164 is a wasteful number, since it uses less digits than its factorization.

22116555164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502648996 (or 502648994 counting only the distinct ones).

The product of its digits is 72000, while the sum is 38.

The spelling of 22116555164 in words is "twenty-two billion, one hundred sixteen million, five hundred fifty-five thousand, one hundred sixty-four".