12256261146 has 40 divisors (see below), whose sum is σ = 29078586900. Its totient is φ = 3845100672.

The previous prime is 12256261123. The next prime is 12256261189. The reversal of 12256261146 is 64116265221.

12256261146 is a `hidden beast` number, since 1 + 2 + 25 + 626 + 1 + 1 + 4 + 6 = 666.

12256261146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11238332121 + 1017929025 = 106011^2 + 31905^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12256261146.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2222421 + ... + 2227928.

Almost surely, 2^12256261146 is an apocalyptic number.

12256261146 is an abundant number, since it is smaller than the sum of its proper divisors (16822325754).

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

12256261146 is a wasteful number, since it uses less digits than its factorization.

12256261146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4450380 (or 4450371 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The spelling of 12256261146 in words is "twelve billion, two hundred fifty-six million, two hundred sixty-one thousand, one hundred forty-six".