Google is not a number of anything.
No, there is no directory for Google Voice numbers.
Google isn't a number, it's a made up word. It was created by the people who deveoped google. Googel is a number, not google. The last number doesn't exist. Numbers are infinite.
If you mean the number google, then it is a 1 followed by 100 zeros.
Look up a list of prime numbers (a Google search for "prime numbers" or "list of prime numbers" should do); every number (greater than 1) that is NOT a prime number is composite.
Yes. Google Cauchy's proof.
No. Google is not a number, it is a search engine. Googol, however, is a number. But it is not the highest, since "googol-plus-one" is higher. Numbers go on forever. For examples of numbers bigger than googol see the attached link.
The truth is there is no last number. A number will always keep going on no matter what.
Yes, 31 is a prime number. If you Google "Prime Numbers", you can see a chart of all the prime numbers.
You have to check "mouse click places number".
There are an infinite number of numbers.
All SayNow numbers became invalid after Google bought the technology. It is not known what Google intends to do with the technology.