20016171025317 has 48 divisors (see below), whose sum is σ = 30765196350720. Its totient is φ = 12504852057600.

The previous prime is 20016171025271. The next prime is 20016171025337. The reversal of 20016171025317 is 71352017161002.

20016171025317 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 6 + 17 + 102 + 531 + 7 = 666.

It is not a de Polignac number, because 20016171025317 - 2¹⁰ = 20016171024293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20016171025337) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5062692 + ... + 8103282.

It is an arithmetic number, because the mean of its divisors is an integer number (640941590640).

Almost surely, 2^{20016171025317} is an apocalyptic number.

It is an amenable number.

20016171025317 is a deficient number, since it is larger than the sum of its proper divisors (10749025325403).

20016171025317 is a wasteful number, since it uses less digits than its factorization.

20016171025317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3041034 (or 3041031 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

Adding to 20016171025317 its reverse (71352017161002), we get a palindrome (91368188186319).

The spelling of 20016171025317 in words is "twenty trillion, sixteen billion, one hundred seventy-one million, twenty-five thousand, three hundred seventeen".