13305305215 has 64 divisors (see below), whose sum is σ = 17042780160. Its totient is φ = 9963233280.

The previous prime is 13305305159. The next prime is 13305305239. The reversal of 13305305215 is 51250350331.

It is not a de Polignac number, because 13305305215 - 2¹⁷ = 13305174143 is a prime.

It is a super-2 number, since 2×13305305215² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 137168047 + ... + 137168143.

It is an arithmetic number, because the mean of its divisors is an integer number (266293440).

Almost surely, 2^13305305215 is an apocalyptic number.

13305305215 is a deficient number, since it is larger than the sum of its proper divisors (3737474945).

13305305215 is an equidigital number, since it uses as much as digits as its factorization.

13305305215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392.

The product of its (nonzero) digits is 6750, while the sum is 28.

Adding to 13305305215 its reverse (51250350331), we get a palindrome (64555655546).

The spelling of 13305305215 in words is "thirteen billion, three hundred five million, three hundred five thousand, two hundred fifteen".