12166345522 has 8 divisors (see below), whose sum is σ = 18261795456. Its totient is φ = 6079080372.

The previous prime is 12166345519. The next prime is 12166345537. The reversal of 12166345522 is 22554366121.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2042478 + ... + 2048425.

It is an arithmetic number, because the mean of its divisors is an integer number (2282724432).

Almost surely, 2^12166345522 is an apocalyptic number.

12166345522 is a deficient number, since it is larger than the sum of its proper divisors (6095449934).

12166345522 is a wasteful number, since it uses less digits than its factorization.

12166345522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4092392.

The product of its digits is 86400, while the sum is 37.

The spelling of 12166345522 in words is "twelve billion, one hundred sixty-six million, three hundred forty-five thousand, five hundred twenty-two".