13205834390225 has 12 divisors (see below), whose sum is σ = 17237089099440. Its totient is φ = 10008632379600.

The previous prime is 13205834390209. The next prime is 13205834390327. The reversal of 13205834390225 is 52209343850231.

It is not a de Polignac number, because 13205834390225 - 2⁴ = 13205834390209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13205834390225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13900877831 + ... + 13900878780.

It is an arithmetic number, because the mean of its divisors is an integer number (1436424091620).

Almost surely, 2^{13205834390225} is an apocalyptic number.

It is an amenable number.

13205834390225 is a deficient number, since it is larger than the sum of its proper divisors (4031254709215).

13205834390225 is a wasteful number, since it uses less digits than its factorization.

13205834390225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27801756640 (or 27801756635 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 13205834390225 in words is "thirteen trillion, two hundred five billion, eight hundred thirty-four million, three hundred ninety thousand, two hundred twenty-five".