12166205 has 16 divisors (see below), whose sum is σ = 15168384. Its totient is φ = 9360960.

The previous prime is 12166201. The next prime is 12166207. The reversal of 12166205 is 50266121.

It is not a de Polignac number, because 12166205 - 2² = 12166201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12166201) 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 15 ways as a sum of consecutive naturals, for example, 14867 + ... + 15663.

It is an arithmetic number, because the mean of its divisors is an integer number (948024).

Almost surely, 2^12166205 is an apocalyptic number.

It is an amenable number.

12166205 is a deficient number, since it is larger than the sum of its proper divisors (3002179).

12166205 is an equidigital number, since it uses as much as digits as its factorization.

12166205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 12166205 is about 3488.0087442551. The cubic root of 12166205 is about 229.9949904391.

The spelling of 12166205 in words is "twelve million, one hundred sixty-six thousand, two hundred five".