12556141635005 has 16 divisors (see below), whose sum is σ = 15954496205760. Its totient is φ = 9453555839232.

The previous prime is 12556141634987. The next prime is 12556141635097. The reversal of 12556141635005 is 50053614165521.

It is a cyclic number.

It is not a de Polignac number, because 12556141635005 - 2²⁸ = 12555873199549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2063999 + ... + 5419628.

It is an arithmetic number, because the mean of its divisors is an integer number (997156012860).

Almost surely, 2^{12556141635005} is an apocalyptic number.

It is an amenable number.

12556141635005 is a deficient number, since it is larger than the sum of its proper divisors (3398354570755).

12556141635005 is a wasteful number, since it uses less digits than its factorization.

12556141635005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7503388.

The product of its (nonzero) digits is 540000, while the sum is 44.

The spelling of 12556141635005 in words is "twelve trillion, five hundred fifty-six billion, one hundred forty-one million, six hundred thirty-five thousand, five".