13205046336655 has 4 divisors (see below), whose sum is σ = 15846055603992. Its totient is φ = 10564037069320.

The previous prime is 13205046336619. The next prime is 13205046336661. The reversal of 13205046336655 is 55663364050231.

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

It is not a de Polignac number, because 13205046336655 - 2¹¹ = 13205046334607 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13205046336599 and 13205046336608.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1320504633661 + ... + 1320504633670.

It is an arithmetic number, because the mean of its divisors is an integer number (3961513900998).

Almost surely, 2^{13205046336655} is an apocalyptic number.

13205046336655 is a deficient number, since it is larger than the sum of its proper divisors (2641009267337).

13205046336655 is an equidigital number, since it uses as much as digits as its factorization.

13205046336655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641009267336.

The product of its (nonzero) digits is 5832000, while the sum is 49.

The spelling of 13205046336655 in words is "thirteen trillion, two hundred five billion, forty-six million, three hundred thirty-six thousand, six hundred fifty-five".