8666842008 has 64 divisors (see below), whose sum is σ = 23853772800. Its totient is φ = 2602212480.

The previous prime is 8666842007. The next prime is 8666842073. The reversal of 8666842008 is 8002486668.

It is a happy number.

It is a super-2 number, since 2×8666842008² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8666842007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121816 + ... + 179367.

It is an arithmetic number, because the mean of its divisors is an integer number (372715200).

Almost surely, 2^8666842008 is an apocalyptic number.

8666842008 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

8666842008 is an abundant number, since it is smaller than the sum of its proper divisors (15186930792).

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

8666842008 is a wasteful number, since it uses less digits than its factorization.

8666842008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301312 (or 301308 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The square root of 8666842008 is about 93095.8753543894. The cubic root of 8666842008 is about 2054.0939016614.

The spelling of 8666842008 in words is "eight billion, six hundred sixty-six million, eight hundred forty-two thousand, eight".