12166165 has 8 divisors (see below), whose sum is σ = 15926688. Its totient is φ = 8848080.

The previous prime is 12166163. The next prime is 12166171. The reversal of 12166165 is 56166121.

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

It is not a de Polignac number, because 12166165 - 2¹ = 12166163 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 (12166163) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 110547 + ... + 110656.

It is an arithmetic number, because the mean of its divisors is an integer number (1990836).

Almost surely, 2^12166165 is an apocalyptic number.

It is an amenable number.

12166165 is a deficient number, since it is larger than the sum of its proper divisors (3760523).

12166165 is a wasteful number, since it uses less digits than its factorization.

12166165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221219.

The product of its digits is 2160, while the sum is 28.

The square root of 12166165 is about 3488.0030103198. The cubic root of 12166165 is about 229.9947383799.

It can be divided in two parts, 1216 and 6165, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 12166165 in words is "twelve million, one hundred sixty-six thousand, one hundred sixty-five".