22451166 has 24 divisors (see below), whose sum is σ = 49094760. Its totient is φ = 7414416.

The previous prime is 22451147. The next prime is 22451167. The reversal of 22451166 is 66115422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22451167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3760 + ... + 7683.

It is an arithmetic number, because the mean of its divisors is an integer number (2045615).

Almost surely, 2^22451166 is an apocalyptic number.

22451166 is an abundant number, since it is smaller than the sum of its proper divisors (26643594).

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

22451166 is a wasteful number, since it uses less digits than its factorization.

22451166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11560 (or 11557 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 22451166 is about 4738.2661385785. The cubic root of 22451166 is about 282.1064182636.

Adding to 22451166 its reverse (66115422), we get a palindrome (88566588).

The spelling of 22451166 in words is "twenty-two million, four hundred fifty-one thousand, one hundred sixty-six".