22551166 has 16 divisors (see below), whose sum is σ = 37142640. Its totient is φ = 10183680.

The previous prime is 22551161. The next prime is 22551203. The reversal of 22551166 is 66115522.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22551161) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 190 + ... + 6718.

It is an arithmetic number, because the mean of its divisors is an integer number (2321415).

Almost surely, 2^22551166 is an apocalyptic number.

22551166 is a deficient number, since it is larger than the sum of its proper divisors (14591474).

22551166 is a wasteful number, since it uses less digits than its factorization.

22551166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6699.

The product of its digits is 3600, while the sum is 28.

The square root of 22551166 is about 4748.8067975019. The cubic root of 22551166 is about 282.5246424323.

Adding to 22551166 its reverse (66115522), we get a palindrome (88666688).

The spelling of 22551166 in words is "twenty-two million, five hundred fifty-one thousand, one hundred sixty-six".