12166066 has 12 divisors (see below), whose sum is σ = 20059326. Its totient is φ = 5529920.

The previous prime is 12166039. The next prime is 12166069. The reversal of 12166066 is 66066121.

It can be written as a sum of positive squares in only one way, i.e., 9828225 + 2337841 = 3135^2 + 1529^2 .

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12166069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24895 + ... + 25378.

Almost surely, 2^12166066 is an apocalyptic number.

12166066 is a deficient number, since it is larger than the sum of its proper divisors (7893260).

12166066 is a wasteful number, since it uses less digits than its factorization.

12166066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50297 (or 50286 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 12166066 is about 3487.9888187894. The cubic root of 12166066 is about 229.9941145312.

The spelling of 12166066 in words is "twelve million, one hundred sixty-six thousand, sixty-six".