20116710171043 has 4 divisors (see below), whose sum is σ = 20116752603280. Its totient is φ = 20116667738808.

The previous prime is 20116710171007. The next prime is 20116710171049. The reversal of 20116710171043 is 34017101761102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20116710171043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20116710171049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20496855 + ... + 21455872.

It is an arithmetic number, because the mean of its divisors is an integer number (5029188150820).

Almost surely, 2^{20116710171043} is an apocalyptic number.

20116710171043 is a deficient number, since it is larger than the sum of its proper divisors (42432237).

20116710171043 is an equidigital number, since it uses as much as digits as its factorization.

20116710171043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42432236.

The product of its (nonzero) digits is 7056, while the sum is 34.

The spelling of 20116710171043 in words is "twenty trillion, one hundred sixteen billion, seven hundred ten million, one hundred seventy-one thousand, forty-three".