8005216818 has 8 divisors (see below), whose sum is σ = 16010433648. Its totient is φ = 2668405604.

The previous prime is 8005216799. The next prime is 8005216823. The reversal of 8005216818 is 8186125008.

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

8005216818 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667101396 + ... + 667101407.

It is an arithmetic number, because the mean of its divisors is an integer number (2001304206).

Almost surely, 2^8005216818 is an apocalyptic number.

8005216818 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8005216818 is a wasteful number, since it uses less digits than its factorization.

8005216818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334202808.

The product of its (nonzero) digits is 30720, while the sum is 39.

The square root of 8005216818 is about 89471.8772464287. The cubic root of 8005216818 is about 2000.4346403704.

The spelling of 8005216818 in words is "eight billion, five million, two hundred sixteen thousand, eight hundred eighteen".