12662368866 has 24 divisors (see below), whose sum is σ = 31354437504. Its totient is φ = 3617819640.

The previous prime is 12662368843. The next prime is 12662368877. The reversal of 12662368866 is 66886326621.

It is a happy number.

12662368866 is a `hidden beast` number, since 1 + 2 + 6 + 623 + 6 + 8 + 8 + 6 + 6 = 666.

It is a super-2 number, since 2×12662368866² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50247370 + ... + 50247621.

It is an arithmetic number, because the mean of its divisors is an integer number (1306434896).

Almost surely, 2^12662368866 is an apocalyptic number.

12662368866 is an abundant number, since it is smaller than the sum of its proper divisors (18692068638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12662368866 is a wasteful number, since it uses less digits than its factorization.

12662368866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100495006 (or 100495003 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 54.

The spelling of 12662368866 in words is "twelve billion, six hundred sixty-two million, three hundred sixty-eight thousand, eight hundred sixty-six".