13321062065 has 8 divisors (see below), whose sum is σ = 16126737768. Its totient is φ = 10562540800.

The previous prime is 13321062047. The next prime is 13321062121. The reversal of 13321062065 is 56026012331.

It can be written as a sum of positive squares in 4 ways, for example, as 870073009 + 12450989056 = 29497^2 + 111584^2 .

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

It is not a de Polignac number, because 13321062065 - 2²⁰ = 13320013489 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, 11787986 + ... + 11789115.

It is an arithmetic number, because the mean of its divisors is an integer number (2015842221).

Almost surely, 2^13321062065 is an apocalyptic number.

It is an amenable number.

13321062065 is a deficient number, since it is larger than the sum of its proper divisors (2805675703).

13321062065 is a wasteful number, since it uses less digits than its factorization.

13321062065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23577219.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 13321062065 its reverse (56026012331), we get a palindrome (69347074396).

The spelling of 13321062065 in words is "thirteen billion, three hundred twenty-one million, sixty-two thousand, sixty-five".