12266666423166 has 64 divisors (see below), whose sum is σ = 24992997866496. Its totient is φ = 4013184614400.

The previous prime is 12266666423147. The next prime is 12266666423183. The reversal of 12266666423166 is 66132466666221.

It is a happy number.

It is a super-2 number, since 2×12266666423166² (a number of 27 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 (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28971646 + ... + 29391998.

It is an arithmetic number, because the mean of its divisors is an integer number (390515591664).

Almost surely, 2^{12266666423166} is an apocalyptic number.

12266666423166 is an abundant number, since it is smaller than the sum of its proper divisors (12726331443330).

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

12266666423166 is a wasteful number, since it uses less digits than its factorization.

12266666423166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420897.

The product of its digits is 26873856, while the sum is 57.

The spelling of 12266666423166 in words is "twelve trillion, two hundred sixty-six billion, six hundred sixty-six million, four hundred twenty-three thousand, one hundred sixty-six".