171161143807 has 8 divisors (see below), whose sum is σ = 181822559600. Its totient is φ = 160665021504.

The previous prime is 171161143801. The next prime is 171161143817. The reversal of 171161143807 is 708341161171.

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 171161143807 - 2³ = 171161143799 is a prime.

It is a super-2 number, since 2×171161143807² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 171161143807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171161143801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41321238 + ... + 41325379.

It is an arithmetic number, because the mean of its divisors is an integer number (22727819950).

Almost surely, 2^171161143807 is an apocalyptic number.

171161143807 is a deficient number, since it is larger than the sum of its proper divisors (10661415793).

171161143807 is a wasteful number, since it uses less digits than its factorization.

171161143807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82646745.

The product of its (nonzero) digits is 28224, while the sum is 40.

The spelling of 171161143807 in words is "one hundred seventy-one billion, one hundred sixty-one million, one hundred forty-three thousand, eight hundred seven".