20117673177143 has 8 divisors (see below), whose sum is σ = 20614823602560. Its totient is φ = 19625728515640.

The previous prime is 20117673177113. The next prime is 20117673177187. The reversal of 20117673177143 is 34177137671102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20117673177143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20117673177091 and 20117673177100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20117673177113) 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, 1301433155 + ... + 1301448612.

It is an arithmetic number, because the mean of its divisors is an integer number (2576852950320).

Almost surely, 2^{20117673177143} is an apocalyptic number.

20117673177143 is a deficient number, since it is larger than the sum of its proper divisors (497150425417).

20117673177143 is a wasteful number, since it uses less digits than its factorization.

20117673177143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602881957.

The product of its (nonzero) digits is 1037232, while the sum is 50.

The spelling of 20117673177143 in words is "twenty trillion, one hundred seventeen billion, six hundred seventy-three million, one hundred seventy-seven thousand, one hundred forty-three".