12666046187992 has 16 divisors (see below), whose sum is σ = 23806902223800. Its totient is φ = 6317538928320.

The previous prime is 12666046187941. The next prime is 12666046187999. The reversal of 12666046187992 is 29978164066621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12666046187999) 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, 1935517234 + ... + 1935523777.

Almost surely, 2^{12666046187992} is an apocalyptic number.

It is an amenable number.

12666046187992 is a deficient number, since it is larger than the sum of its proper divisors (11140856035808).

12666046187992 is a wasteful number, since it uses less digits than its factorization.

12666046187992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3871041426 (or 3871041422 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 67.

The spelling of 12666046187992 in words is "twelve trillion, six hundred sixty-six billion, forty-six million, one hundred eighty-seven thousand, nine hundred ninety-two".