12156716216 has 32 divisors (see below), whose sum is σ = 23537450880. Its totient is φ = 5880201600.

The previous prime is 12156716153. The next prime is 12156716267. The reversal of 12156716216 is 61261765121.

It is a self number, because there is not a number n which added to its sum of digits gives 12156716216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875246 + ... + 889026.

It is an arithmetic number, because the mean of its divisors is an integer number (735545340).

Almost surely, 2^12156716216 is an apocalyptic number.

It is an amenable number.

12156716216 is a deficient number, since it is larger than the sum of its proper divisors (11380734664).

12156716216 is a wasteful number, since it uses less digits than its factorization.

12156716216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17375 (or 17371 counting only the distinct ones).

The product of its digits is 30240, while the sum is 38.

The spelling of 12156716216 in words is "twelve billion, one hundred fifty-six million, seven hundred sixteen thousand, two hundred sixteen".