20068871171 has 8 divisors (see below), whose sum is σ = 20721552384. Its totient is φ = 19416521160.

The previous prime is 20068871159. The next prime is 20068871209. The reversal of 20068871171 is 17117886002.

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-20068871171 is a prime.

It is a super-2 number, since 2×20068871171² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20068871111) 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, 43436 + ... + 204998.

It is an arithmetic number, because the mean of its divisors is an integer number (2590194048).

Almost surely, 2^20068871171 is an apocalyptic number.

20068871171 is a deficient number, since it is larger than the sum of its proper divisors (652681213).

20068871171 is a wasteful number, since it uses less digits than its factorization.

20068871171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165601.

The product of its (nonzero) digits is 37632, while the sum is 41.

The spelling of 20068871171 in words is "twenty billion, sixty-eight million, eight hundred seventy-one thousand, one hundred seventy-one".