12170166 has 32 divisors (see below), whose sum is σ = 25574400. Its totient is φ = 3855840.

The previous prime is 12170149. The next prime is 12170167. The reversal of 12170166 is 66107121.

It is a super-2 number, since 2×12170166² = 296225880935112, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12170167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10420 + ... + 11528.

It is an arithmetic number, because the mean of its divisors is an integer number (799200).

Almost surely, 2^12170166 is an apocalyptic number.

12170166 is an abundant number, since it is smaller than the sum of its proper divisors (13404234).

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

12170166 is a wasteful number, since it uses less digits than its factorization.

12170166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 12170166 is about 3488.5765005228. The cubic root of 12170166 is about 230.0199478603.

Adding to 12170166 its reverse (66107121), we get a palindrome (78277287).

The spelling of 12170166 in words is "twelve million, one hundred seventy thousand, one hundred sixty-six".