13126360005563 has 4 divisors (see below), whose sum is σ = 15001554292080. Its totient is φ = 11251165719048.

The previous prime is 13126360005533. The next prime is 13126360005623. The reversal of 13126360005563 is 36550006362131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13126360005563 - 2²⁸ = 13126091570107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13126360005563.

It is not an unprimeable number, because it can be changed into a prime (13126360005533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 937597143248 + ... + 937597143261.

It is an arithmetic number, because the mean of its divisors is an integer number (3750388573020).

Almost surely, 2^{13126360005563} is an apocalyptic number.

13126360005563 is a deficient number, since it is larger than the sum of its proper divisors (1875194286517).

13126360005563 is an equidigital number, since it uses as much as digits as its factorization.

13126360005563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875194286516.

The product of its (nonzero) digits is 291600, while the sum is 41.

Adding to 13126360005563 its reverse (36550006362131), we get a palindrome (49676366367694).

The spelling of 13126360005563 in words is "thirteen trillion, one hundred twenty-six billion, three hundred sixty million, five thousand, five hundred sixty-three".