12536557714540 has 96 divisors (see below), whose sum is σ = 26927982144000. Its totient is φ = 4901128657920.

The previous prime is 12536557714529. The next prime is 12536557714547. The reversal of 12536557714540 is 4541775563521.

It is not an unprimeable number, because it can be changed into a prime (12536557714547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319570407 + ... + 319609633.

It is an arithmetic number, because the mean of its divisors is an integer number (280499814000).

Almost surely, 2^{12536557714540} is an apocalyptic number.

12536557714540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12536557714540 is an abundant number, since it is smaller than the sum of its proper divisors (14391424429460).

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

12536557714540 is a wasteful number, since it uses less digits than its factorization.

12536557714540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40855 (or 40853 counting only the distinct ones).

The product of its (nonzero) digits is 17640000, while the sum is 55.

The spelling of 12536557714540 in words is "twelve trillion, five hundred thirty-six billion, five hundred fifty-seven million, seven hundred fourteen thousand, five hundred forty".