While approaching it in length, your Google Plus account number is really not quite as sexy as the Fibonacci sequence. While Googlers apparently like to have fun with large numbers, if you're like me, you may find yourself unable to even remember Pi to the 2nd digit. You may therefore be experiencing difficulty trying to tell your friends how to find you on Google Plus, other than looking for your Gmail address. As that is NOT visible on Google Plus, it may not be well known to people. If you've only recently joined the Google-verse (and in that case, we may need to discuss what cave you have been hiding in), friends and colleagues may not be aware of your new "Google persona", and find it difficult to simply search for you on Google Plus.
Never fear. Nick Name has already come up with a way to personalize your number, and put it nicely into some sort of word that you choose, that is more memorable in whatever "alphabetical symbols" you choose to use.
Use it wisely! It's like naming your child: you may be stuck with it for a while.