12255681772 has 12 divisors (see below), whose sum is σ = 21575872080. Its totient is φ = 6091146896.

The previous prime is 12255681731. The next prime is 12255681817. The reversal of 12255681772 is 27718655221.

It is a happy number.

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, 9172747 + ... + 9174082.

It is an arithmetic number, because the mean of its divisors is an integer number (1797989340).

Almost surely, 2^12255681772 is an apocalyptic number.

It is an amenable number.

12255681772 is a deficient number, since it is larger than the sum of its proper divisors (9320190308).

12255681772 is a wasteful number, since it uses less digits than its factorization.

12255681772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18347000 (or 18346998 counting only the distinct ones).

The product of its digits is 470400, while the sum is 46.

The spelling of 12255681772 in words is "twelve billion, two hundred fifty-five million, six hundred eighty-one thousand, seven hundred seventy-two".