8168085085 has 8 divisors (see below), whose sum is σ = 10317581280. Its totient is φ = 6190548624.

The previous prime is 8168085071. The next prime is 8168085169. The reversal of 8168085085 is 5805808618.

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 8168085085 - 2³¹ = 6020601437 is a prime.

It is a super-2 number, since 2×8168085085² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42989827 + ... + 42990016.

It is an arithmetic number, because the mean of its divisors is an integer number (1289697660).

Almost surely, 2^8168085085 is an apocalyptic number.

It is an amenable number.

8168085085 is a deficient number, since it is larger than the sum of its proper divisors (2149496195).

8168085085 is a wasteful number, since it uses less digits than its factorization.

8168085085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85979867.

The product of its (nonzero) digits is 614400, while the sum is 49.

The square root of 8168085085 is about 90377.4589430351. The cubic root of 8168085085 is about 2013.9101204011.

The spelling of 8168085085 in words is "eight billion, one hundred sixty-eight million, eighty-five thousand, eighty-five".