8105668185 has 16 divisors (see below), whose sum is σ = 13651652160. Its totient is φ = 4095495360.

The previous prime is 8105668183. The next prime is 8105668189. The reversal of 8105668185 is 5818665018.

It is not a de Polignac number, because 8105668185 - 2¹ = 8105668183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8105668183) 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 15 ways as a sum of consecutive naturals, for example, 14220186 + ... + 14220755.

It is an arithmetic number, because the mean of its divisors is an integer number (853228260).

Almost surely, 2^8105668185 is an apocalyptic number.

It is an amenable number.

8105668185 is a deficient number, since it is larger than the sum of its proper divisors (5545983975).

8105668185 is a wasteful number, since it uses less digits than its factorization.

8105668185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28440968.

The product of its (nonzero) digits is 460800, while the sum is 48.

The square root of 8105668185 is about 90031.4844096219. The cubic root of 8105668185 is about 2008.7671940807.

The spelling of 8105668185 in words is "eight billion, one hundred five million, six hundred sixty-eight thousand, one hundred eighty-five".