12186606668 has 6 divisors (see below), whose sum is σ = 21326561676. Its totient is φ = 6093303332.

The previous prime is 12186606661. The next prime is 12186606697. The reversal of 12186606668 is 86660668121.

It is not an unprimeable number, because it can be changed into a prime (12186606661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1523325830 + ... + 1523325837.

It is an arithmetic number, because the mean of its divisors is an integer number (3554426946).

Almost surely, 2^12186606668 is an apocalyptic number.

It is an amenable number.

12186606668 is a deficient number, since it is larger than the sum of its proper divisors (9139955008).

12186606668 is a wasteful number, since it uses less digits than its factorization.

12186606668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046651671 (or 3046651669 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 50.

The spelling of 12186606668 in words is "twelve billion, one hundred eighty-six million, six hundred six thousand, six hundred sixty-eight".