12255665236 has 6 divisors (see below), whose sum is σ = 21447414170. Its totient is φ = 6127832616.

The previous prime is 12255665231. The next prime is 12255665309. The reversal of 12255665236 is 63256655221.

It can be written as a sum of positive squares in only one way, i.e., 11694259600 + 561405636 = 108140^2 + 23694^2 .

It is a super-3 number, since 3×12255665236³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12255665192 and 12255665201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12255665231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1531958151 + ... + 1531958158.

Almost surely, 2^12255665236 is an apocalyptic number.

It is an amenable number.

12255665236 is a deficient number, since it is larger than the sum of its proper divisors (9191748934).

12255665236 is a wasteful number, since it uses less digits than its factorization.

12255665236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063916313 (or 3063916311 counting only the distinct ones).

The product of its digits is 648000, while the sum is 43.

The spelling of 12255665236 in words is "twelve billion, two hundred fifty-five million, six hundred sixty-five thousand, two hundred thirty-six".