12636811066 has 16 divisors (see below), whose sum is σ = 20871678240. Its totient is φ = 5690321680.

The previous prime is 12636811051. The next prime is 12636811067. The reversal of 12636811066 is 66011863621.

It is not an unprimeable number, because it can be changed into a prime (12636811067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2681761 + ... + 2686468.

It is an arithmetic number, because the mean of its divisors is an integer number (1304479890).

Almost surely, 2^12636811066 is an apocalyptic number.

12636811066 is a deficient number, since it is larger than the sum of its proper divisors (8234867174).

12636811066 is a wasteful number, since it uses less digits than its factorization.

12636811066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5368349.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 12636811066 in words is "twelve billion, six hundred thirty-six million, eight hundred eleven thousand, sixty-six".