8665861822 has 8 divisors (see below), whose sum is σ = 13000318200. Its totient is φ = 4332422424.

The previous prime is 8665861817. The next prime is 8665861879. The reversal of 8665861822 is 2281685668.

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

It is a super-2 number, since 2×8665861822² (a number of 21 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 8665861822.

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, 232572 + ... + 267247.

It is an arithmetic number, because the mean of its divisors is an integer number (1625039775).

Almost surely, 2^8665861822 is an apocalyptic number.

8665861822 is a deficient number, since it is larger than the sum of its proper divisors (4334456378).

8665861822 is a wasteful number, since it uses less digits than its factorization.

8665861822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508490.

The product of its digits is 2211840, while the sum is 52.

The square root of 8665861822 is about 93090.6108154845. The cubic root of 8665861822 is about 2054.0164620746.

The spelling of 8665861822 in words is "eight billion, six hundred sixty-five million, eight hundred sixty-one thousand, eight hundred twenty-two".