12213634166 has 4 divisors (see below), whose sum is σ = 18320451252. Its totient is φ = 6106817082.

The previous prime is 12213634159. The next prime is 12213634187. The reversal of 12213634166 is 66143631221.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3053408540 + ... + 3053408543.

It is an arithmetic number, because the mean of its divisors is an integer number (4580112813).

Almost surely, 2^12213634166 is an apocalyptic number.

12213634166 is a deficient number, since it is larger than the sum of its proper divisors (6106817086).

12213634166 is an equidigital number, since it uses as much as digits as its factorization.

12213634166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6106817085.

The product of its digits is 31104, while the sum is 35.

The spelling of 12213634166 in words is "twelve billion, two hundred thirteen million, six hundred thirty-four thousand, one hundred sixty-six".