171116643259 has 4 divisors (see below), whose sum is σ = 171145259280. Its totient is φ = 171088027240.

The previous prime is 171116643167. The next prime is 171116643293. The reversal of 171116643259 is 952346611171.

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

It is a cyclic number.

It is not a de Polignac number, because 171116643259 - 2⁹ = 171116642747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171116343259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14299039 + ... + 14311000.

It is an arithmetic number, because the mean of its divisors is an integer number (42786314820).

Almost surely, 2^171116643259 is an apocalyptic number.

171116643259 is a deficient number, since it is larger than the sum of its proper divisors (28616021).

171116643259 is an equidigital number, since it uses as much as digits as its factorization.

171116643259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28616020.

The product of its digits is 272160, while the sum is 46.

The spelling of 171116643259 in words is "one hundred seventy-one billion, one hundred sixteen million, six hundred forty-three thousand, two hundred fifty-nine".