22331166 has 64 divisors (see below), whose sum is σ = 55593216. Its totient is φ = 5875200.

The previous prime is 22331161. The next prime is 22331203. The reversal of 22331166 is 66113322.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a Curzon number.

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 (22331161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13821 + ... + 15351.

It is an arithmetic number, because the mean of its divisors is an integer number (868644).

Almost surely, 2^22331166 is an apocalyptic number.

22331166 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22331166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27796608).

22331166 is an abundant number, since it is smaller than the sum of its proper divisors (33262050).

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

22331166 is a wasteful number, since it uses less digits than its factorization.

22331166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577.

The product of its digits is 1296, while the sum is 24.

The square root of 22331166 is about 4725.5863128293. The cubic root of 22331166 is about 281.6029067231.

Adding to 22331166 its reverse (66113322), we get a palindrome (88444488).

The spelling of 22331166 in words is "twenty-two million, three hundred thirty-one thousand, one hundred sixty-six".