12560613540 has 48 divisors (see below), whose sum is σ = 37238527872. Its totient is φ = 3152467456.

The previous prime is 12560613529. The next prime is 12560613547. The reversal of 12560613540 is 4531606521.

It is not an unprimeable number, because it can be changed into a prime (12560613547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6156144 + ... + 6158183.

It is an arithmetic number, because the mean of its divisors is an integer number (775802664).

Almost surely, 2^12560613540 is an apocalyptic number.

12560613540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12560613540 is an abundant number, since it is smaller than the sum of its proper divisors (24677914332).

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

12560613540 is a wasteful number, since it uses less digits than its factorization.

12560613540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12314356 (or 12314354 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 12560613540 in words is "twelve billion, five hundred sixty million, six hundred thirteen thousand, five hundred forty".