22166110566 has 48 divisors (see below), whose sum is σ = 49839701184. Its totient is φ = 7383605544.

The previous prime is 22166110517. The next prime is 22166110579. The reversal of 22166110566 is 66501166122.

22166110566 is a `hidden beast` number, since 2 + 21 + 6 + 61 + 10 + 566 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 22166110566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 725205 + ... + 755151.

It is an arithmetic number, because the mean of its divisors is an integer number (1038327108).

Almost surely, 2^22166110566 is an apocalyptic number.

22166110566 is an abundant number, since it is smaller than the sum of its proper divisors (27673590618).

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

22166110566 is a wasteful number, since it uses less digits than its factorization.

22166110566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31487 (or 31475 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

Adding to 22166110566 its reverse (66501166122), we get a palindrome (88667276688).

The spelling of 22166110566 in words is "twenty-two billion, one hundred sixty-six million, one hundred ten thousand, five hundred sixty-six".