12255632577 has 12 divisors (see below), whose sum is σ = 17704083540. Its totient is φ = 8169727968.

The previous prime is 12255632569. The next prime is 12255632579. The reversal of 12255632577 is 77523655221.

12255632577 is a `hidden beast` number, since 1 + 2 + 2 + 5 + 5 + 632 + 5 + 7 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4329113616 + 7926518961 = 65796^2 + 89031^2 .

It is not a de Polignac number, because 12255632577 - 2³ = 12255632569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12255632579) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68623 + ... + 170939.

It is an arithmetic number, because the mean of its divisors is an integer number (1475340295).

Almost surely, 2^12255632577 is an apocalyptic number.

It is an amenable number.

12255632577 is a deficient number, since it is larger than the sum of its proper divisors (5448450963).

12255632577 is a wasteful number, since it uses less digits than its factorization.

12255632577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115632 (or 115629 counting only the distinct ones).

The product of its digits is 882000, while the sum is 45.

The spelling of 12255632577 in words is "twelve billion, two hundred fifty-five million, six hundred thirty-two thousand, five hundred seventy-seven".