12806534216 has 16 divisors (see below), whose sum is σ = 27442573440. Its totient is φ = 5488514640.

The previous prime is 12806534207. The next prime is 12806534233. The reversal of 12806534216 is 61243560821.

It is a self number, because there is not a number n which added to its sum of digits gives 12806534216.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114344000 + ... + 114344111.

It is an arithmetic number, because the mean of its divisors is an integer number (1715160840).

Almost surely, 2^12806534216 is an apocalyptic number.

It is an amenable number.

12806534216 is an abundant number, since it is smaller than the sum of its proper divisors (14636039224).

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

12806534216 is a wasteful number, since it uses less digits than its factorization.

12806534216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228688124 (or 228688120 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 12806534216 in words is "twelve billion, eight hundred six million, five hundred thirty-four thousand, two hundred sixteen".