20117520662216 has 16 divisors (see below), whose sum is σ = 37721082846300. Its totient is φ = 10058565236544.

The previous prime is 20117520662209. The next prime is 20117520662251. The reversal of 20117520662216 is 61226602571102.

It can be written as a sum of positive squares in 2 ways, for example, as 20084254550116 + 33266112100 = 4481546^2 + 182390^2 .

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, 23948111 + ... + 24773918.

Almost surely, 2^{20117520662216} is an apocalyptic number.

It is an amenable number.

20117520662216 is a deficient number, since it is larger than the sum of its proper divisors (17603562184084).

20117520662216 is a wasteful number, since it uses less digits than its factorization.

20117520662216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48773648 (or 48773644 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 20117520662216 in words is "twenty trillion, one hundred seventeen billion, five hundred twenty million, six hundred sixty-two thousand, two hundred sixteen".