12945216166 has 8 divisors (see below), whose sum is σ = 19423124784. Its totient is φ = 6470841240.

The previous prime is 12945216161. The next prime is 12945216169. The reversal of 12945216166 is 66161254921.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12945216161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 874245 + ... + 888928.

It is an arithmetic number, because the mean of its divisors is an integer number (2427890598).

Almost surely, 2^12945216166 is an apocalyptic number.

12945216166 is a deficient number, since it is larger than the sum of its proper divisors (6477908618).

12945216166 is a wasteful number, since it uses less digits than its factorization.

12945216166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766846.

The product of its digits is 155520, while the sum is 43.

The spelling of 12945216166 in words is "twelve billion, nine hundred forty-five million, two hundred sixteen thousand, one hundred sixty-six".