13105555534545 has 16 divisors (see below), whose sum is σ = 20978936288640. Its totient is φ = 6986280473984.

The previous prime is 13105555534529. The next prime is 13105555534571. The reversal of 13105555534545 is 54543555550131.

It is a cyclic number.

It is not a de Polignac number, because 13105555534545 - 2⁴ = 13105555534529 is a prime.

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, 209289180 + ... + 209351789.

It is an arithmetic number, because the mean of its divisors is an integer number (1311183518040).

Almost surely, 2^{13105555534545} is an apocalyptic number.

13105555534545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13105555534545 is a deficient number, since it is larger than the sum of its proper divisors (7873380754095).

13105555534545 is a wasteful number, since it uses less digits than its factorization.

13105555534545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418643064.

The product of its (nonzero) digits is 11250000, while the sum is 51.

The spelling of 13105555534545 in words is "thirteen trillion, one hundred five billion, five hundred fifty-five million, five hundred thirty-four thousand, five hundred forty-five".