12166188365 has 16 divisors (see below), whose sum is σ = 14841973440. Its totient is φ = 9572563200.

The previous prime is 12166188323. The next prime is 12166188383. The reversal of 12166188365 is 56388166121.

12166188365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12166188365 - 2²⁴ = 12149411149 is a prime.

It is a super-2 number, since 2×12166188365² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7436 + ... + 156165.

It is an arithmetic number, because the mean of its divisors is an integer number (927623340).

Almost surely, 2^12166188365 is an apocalyptic number.

It is an amenable number.

12166188365 is a deficient number, since it is larger than the sum of its proper divisors (2675785075).

12166188365 is a wasteful number, since it uses less digits than its factorization.

12166188365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163852.

The product of its digits is 414720, while the sum is 47.

The spelling of 12166188365 in words is "twelve billion, one hundred sixty-six million, one hundred eighty-eight thousand, three hundred sixty-five".