22166866 has 8 divisors (see below), whose sum is σ = 33327360. Its totient is φ = 11057748.

The previous prime is 22166843. The next prime is 22166899. The reversal of 22166866 is 66866122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11746 + ... + 13501.

It is an arithmetic number, because the mean of its divisors is an integer number (4165920).

Almost surely, 2^22166866 is an apocalyptic number.

22166866 is a deficient number, since it is larger than the sum of its proper divisors (11160494).

22166866 is a wasteful number, since it uses less digits than its factorization.

22166866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25688.

The product of its digits is 41472, while the sum is 37.

The square root of 22166866 is about 4708.1701328648. The cubic root of 22166866 is about 280.9105814278.

It can be divided in two parts, 22166 and 866, that added together give a palindrome (23032).

The spelling of 22166866 in words is "twenty-two million, one hundred sixty-six thousand, eight hundred sixty-six".