12866886116 has 24 divisors (see below), whose sum is σ = 25764935616. Its totient is φ = 5507701920.

The previous prime is 12866886103. The next prime is 12866886119. The reversal of 12866886116 is 61168866821.

It is a super-2 number, since 2×12866886116² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12866886119) 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, 254675 + ... + 300986.

It is an arithmetic number, because the mean of its divisors is an integer number (1073538984).

Almost surely, 2^12866886116 is an apocalyptic number.

It is an amenable number.

12866886116 is an abundant number, since it is smaller than the sum of its proper divisors (12898049500).

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

12866886116 is a wasteful number, since it uses less digits than its factorization.

12866886116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556499 (or 556497 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 53.

The spelling of 12866886116 in words is "twelve billion, eight hundred sixty-six million, eight hundred eighty-six thousand, one hundred sixteen".