13243555555 has 24 divisors (see below), whose sum is σ = 16205548032. Its totient is φ = 10389367296.

The previous prime is 13243555553. The next prime is 13243555561. The reversal of 13243555555 is 55555534231.

13243555555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13243555555 - 2¹ = 13243555553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13243555553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5028519 + ... + 5031151.

It is an arithmetic number, because the mean of its divisors is an integer number (675231168).

Almost surely, 2^13243555555 is an apocalyptic number.

13243555555 is a deficient number, since it is larger than the sum of its proper divisors (2961992477).

13243555555 is an equidigital number, since it uses as much as digits as its factorization.

13243555555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943 (or 2854 counting only the distinct ones).

The product of its digits is 1125000, while the sum is 43.

The spelling of 13243555555 in words is "thirteen billion, two hundred forty-three million, five hundred fifty-five thousand, five hundred fifty-five".