12555245808 has 160 divisors (see below), whose sum is σ = 41767326720. Its totient is φ = 3536628480.

The previous prime is 12555245803. The next prime is 12555245821. The reversal of 12555245808 is 80854255521.

12555245808 is a `hidden beast` number, since 12 + 5 + 5 + 52 + 4 + 580 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12555245803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185466 + ... + 243942.

It is an arithmetic number, because the mean of its divisors is an integer number (261045792).

Almost surely, 2^12555245808 is an apocalyptic number.

12555245808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12555245808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20883663360).

12555245808 is an abundant number, since it is smaller than the sum of its proper divisors (29212080912).

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

12555245808 is a wasteful number, since it uses less digits than its factorization.

12555245808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58572 (or 58560 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 45.

The spelling of 12555245808 in words is "twelve billion, five hundred fifty-five million, two hundred forty-five thousand, eight hundred eight".