8221669318 has 8 divisors (see below), whose sum is σ = 12333487248. Its totient is φ = 4110506904.

The previous prime is 8221669297. The next prime is 8221669321. The reversal of 8221669318 is 8139661228.

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

It is a congruent 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, 131221 + ... + 183472.

It is an arithmetic number, because the mean of its divisors is an integer number (1541685906).

Almost surely, 2^8221669318 is an apocalyptic number.

8221669318 is a deficient number, since it is larger than the sum of its proper divisors (4111817930).

8221669318 is a wasteful number, since it uses less digits than its factorization.

8221669318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327758.

The product of its digits is 248832, while the sum is 46.

The square root of 8221669318 is about 90673.4212324648. The cubic root of 8221669318 is about 2018.3044064428.

The spelling of 8221669318 in words is "eight billion, two hundred twenty-one million, six hundred sixty-nine thousand, three hundred eighteen".