12036556513 has 2 divisors, whose sum is σ = 12036556514. Its totient is φ = 12036556512.

The previous prime is 12036556507. The next prime is 12036556523. The reversal of 12036556513 is 31565563021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9806544784 + 2230011729 = 99028^2 + 47223^2 .

It is a cyclic number.

It is not a de Polignac number, because 12036556513 - 2²¹ = 12034459361 is a prime.

It is not a weakly prime, because it can be changed into another prime (12036556523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6018278256 + 6018278257.

It is an arithmetic number, because the mean of its divisors is an integer number (6018278257).

Almost surely, 2^12036556513 is an apocalyptic number.

It is an amenable number.

12036556513 is a deficient number, since it is larger than the sum of its proper divisors (1).

12036556513 is an equidigital number, since it uses as much as digits as its factorization.

12036556513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81000, while the sum is 37.

The spelling of 12036556513 in words is "twelve billion, thirty-six million, five hundred fifty-six thousand, five hundred thirteen".