171116671 has 4 divisors (see below), whose sum is σ = 186672744. Its totient is φ = 155560600.

The previous prime is 171116663. The next prime is 171116689. The reversal of 171116671 is 176611171.

171116671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 171116671 - 2³ = 171116663 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171111671) 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, 7778020 + ... + 7778041.

It is an arithmetic number, because the mean of its divisors is an integer number (46668186).

Almost surely, 2^171116671 is an apocalyptic number.

171116671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

171116671 is a deficient number, since it is larger than the sum of its proper divisors (15556073).

171116671 is a wasteful number, since it uses less digits than its factorization.

171116671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15556072.

The product of its digits is 1764, while the sum is 31.

The square root of 171116671 is about 13081.1570971379. The cubic root of 171116671 is about 555.1761159554.

The spelling of 171116671 in words is "one hundred seventy-one million, one hundred sixteen thousand, six hundred seventy-one".