13205051155555 has 16 divisors (see below), whose sum is σ = 18149412000960. Its totient is φ = 9035078441472.

The previous prime is 13205051155489. The next prime is 13205051155577. The reversal of 13205051155555 is 55555115050231.

It is a cyclic number.

It is not a de Polignac number, because 13205051155555 - 2³⁷ = 13067612202083 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, 412770850 + ... + 412802839.

It is an arithmetic number, because the mean of its divisors is an integer number (1134338250060).

Almost surely, 2^{13205051155555} is an apocalyptic number.

13205051155555 is a deficient number, since it is larger than the sum of its proper divisors (4944360845405).

13205051155555 is an equidigital number, since it uses as much as digits as its factorization.

13205051155555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825574158.

The product of its (nonzero) digits is 468750, while the sum is 43.

The spelling of 13205051155555 in words is "thirteen trillion, two hundred five billion, fifty-one million, one hundred fifty-five thousand, five hundred fifty-five".