22660166 has 4 divisors (see below), whose sum is σ = 33990252. Its totient is φ = 11330082.

The previous prime is 22660087. The next prime is 22660177. The reversal of 22660166 is 66106622.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665040 + ... + 5665043.

It is an arithmetic number, because the mean of its divisors is an integer number (8497563).

Almost surely, 2^22660166 is an apocalyptic number.

22660166 is a deficient number, since it is larger than the sum of its proper divisors (11330086).

22660166 is a wasteful number, since it uses less digits than its factorization.

22660166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11330085.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 22660166 is about 4760.2695301842. The cubic root of 22660166 is about 282.9791008719.

Adding to 22660166 its reverse (66106622), we get a palindrome (88766788).

The spelling of 22660166 in words is "twenty-two million, six hundred sixty thousand, one hundred sixty-six".