20117262306163 has 8 divisors (see below), whose sum is σ = 22007235548160. Its totient is φ = 18237477599880.

The previous prime is 20117262306161. The next prime is 20117262306179. The reversal of 20117262306163 is 36160326271102.

It is a happy number.

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

It is not a de Polignac number, because 20117262306163 - 2¹ = 20117262306161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20117262306161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2547129795 + ... + 2547137692.

It is an arithmetic number, because the mean of its divisors is an integer number (2750904443520).

Almost surely, 2^{20117262306163} is an apocalyptic number.

20117262306163 is a deficient number, since it is larger than the sum of its proper divisors (1889973241997).

20117262306163 is a wasteful number, since it uses less digits than its factorization.

20117262306163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5094267857.

The product of its (nonzero) digits is 108864, while the sum is 40.

Adding to 20117262306163 its reverse (36160326271102), we get a palindrome (56277588577265).

The spelling of 20117262306163 in words is "twenty trillion, one hundred seventeen billion, two hundred sixty-two million, three hundred six thousand, one hundred sixty-three".