12165384712 has 16 divisors (see below), whose sum is σ = 24564719340. Its totient is φ = 5614792896.

The previous prime is 12165384691. The next prime is 12165384719. The reversal of 12165384712 is 21748356121.

It can be written as a sum of positive squares in 2 ways, for example, as 10519784356 + 1645600356 = 102566^2 + 40566^2 .

It is not an unprimeable number, because it can be changed into a prime (12165384719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58487323 + ... + 58487530.

Almost surely, 2^12165384712 is an apocalyptic number.

It is an amenable number.

12165384712 is an abundant number, since it is smaller than the sum of its proper divisors (12399334628).

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

12165384712 is a wasteful number, since it uses less digits than its factorization.

12165384712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116974872 (or 116974868 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The spelling of 12165384712 in words is "twelve billion, one hundred sixty-five million, three hundred eighty-four thousand, seven hundred twelve".