13216306550064 has 20 divisors (see below), whose sum is σ = 34142125254456. Its totient is φ = 4405435516672.

The previous prime is 13216306550047. The next prime is 13216306550089. The reversal of 13216306550064 is 46005560361231.

It is a junction number, because it is equal to n+sod(n) for n = 13216306549998 and 13216306550025.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137669859849 + ... + 137669859944.

Almost surely, 2^{13216306550064} is an apocalyptic number.

It is an amenable number.

13216306550064 is an abundant number, since it is smaller than the sum of its proper divisors (20925818704392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13216306550064 is a wasteful number, since it uses less digits than its factorization.

13216306550064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275339719804 (or 275339719798 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 13216306550064 in words is "thirteen trillion, two hundred sixteen billion, three hundred six million, five hundred fifty thousand, sixty-four".