12166199632 has 10 divisors (see below), whose sum is σ = 23572011818. Its totient is φ = 6083099808.

The previous prime is 12166199621. The next prime is 12166199641. The reversal of 12166199632 is 23699166121.

It can be written as a sum of positive squares in only one way, i.e., 12165207616 + 992016 = 110296^2 + 996^2 .

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, 380193723 + ... + 380193754.

Almost surely, 2^12166199632 is an apocalyptic number.

It is an amenable number.

12166199632 is a deficient number, since it is larger than the sum of its proper divisors (11405812186).

12166199632 is an equidigital number, since it uses as much as digits as its factorization.

12166199632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760387485 (or 760387479 counting only the distinct ones).

The product of its digits is 209952, while the sum is 46.

The spelling of 12166199632 in words is "twelve billion, one hundred sixty-six million, one hundred ninety-nine thousand, six hundred thirty-two".