13205015155 has 8 divisors (see below), whose sum is σ = 15928982784. Its totient is φ = 10508702400.

The previous prime is 13205015071. The next prime is 13205015167. The reversal of 13205015155 is 55151050231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13205015155 - 2⁹ = 13205014643 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6912666 + ... + 6914575.

It is an arithmetic number, because the mean of its divisors is an integer number (1991122848).

Almost surely, 2^13205015155 is an apocalyptic number.

13205015155 is a deficient number, since it is larger than the sum of its proper divisors (2723967629).

13205015155 is a wasteful number, since it uses less digits than its factorization.

13205015155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13827437.

The product of its (nonzero) digits is 3750, while the sum is 28.

Adding to 13205015155 its reverse (55151050231), we get a palindrome (68356065386).

The spelling of 13205015155 in words is "thirteen billion, two hundred five million, fifteen thousand, one hundred fifty-five".