171668711 has 8 divisors (see below), whose sum is σ = 180338400. Its totient is φ = 163099552.

The previous prime is 171668687. The next prime is 171668723. The reversal of 171668711 is 117866171.

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

It is a cyclic number.

It is not a de Polignac number, because 171668711 - 2⁶ = 171668647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171668741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21620 + ... + 28473.

It is an arithmetic number, because the mean of its divisors is an integer number (22542300).

Almost surely, 2^171668711 is an apocalyptic number.

171668711 is a deficient number, since it is larger than the sum of its proper divisors (8669689).

171668711 is a wasteful number, since it uses less digits than its factorization.

171668711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50265.

The product of its digits is 14112, while the sum is 38.

The square root of 171668711 is about 13102.2406862338. The cubic root of 171668711 is about 555.7724935276.

The spelling of 171668711 in words is "one hundred seventy-one million, six hundred sixty-eight thousand, seven hundred eleven".