13216464365 has 16 divisors (see below), whose sum is σ = 17089446528. Its totient is φ = 9754303296.

The previous prime is 13216464337. The next prime is 13216464407. The reversal of 13216464365 is 56346461231.

It is a cyclic number.

It is not a de Polignac number, because 13216464365 - 2³² = 8921497069 is a prime.

It is a super-2 number, since 2×13216464365² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 59264 + ... + 173046.

It is an arithmetic number, because the mean of its divisors is an integer number (1068090408).

Almost surely, 2^13216464365 is an apocalyptic number.

It is an amenable number.

13216464365 is a deficient number, since it is larger than the sum of its proper divisors (3872982163).

13216464365 is a wasteful number, since it uses less digits than its factorization.

13216464365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115588.

The product of its digits is 311040, while the sum is 41.

The spelling of 13216464365 in words is "thirteen billion, two hundred sixteen million, four hundred sixty-four thousand, three hundred sixty-five".