6664345008 has 40 divisors (see below), whose sum is σ = 17219694000. Its totient is φ = 2221000704.

The previous prime is 6664345007. The next prime is 6664345031. The reversal of 6664345008 is 8005434666.

It is not an unprimeable number, because it can be changed into a prime (6664345003) 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 7 ways as a sum of consecutive naturals, for example, 298788 + ... + 320316.

It is an arithmetic number, because the mean of its divisors is an integer number (430492350).

Almost surely, 2^6664345008 is an apocalyptic number.

It is an amenable number.

6664345008 is an abundant number, since it is smaller than the sum of its proper divisors (10555348992).

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

6664345008 is a wasteful number, since it uses less digits than its factorization.

6664345008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27989 (or 27983 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The square root of 6664345008 is about 81635.4396570509. The cubic root of 6664345008 is about 1881.8535559506.

The spelling of 6664345008 in words is "six billion, six hundred sixty-four million, three hundred forty-five thousand, eight".