How many people are in the world?

how many human beings are in the univerce?????......how many non human things are living near planet earth?????.....how many alians are walkin amungst our earthly presants?????.....what the hell am i talking about?????.....how many human beings are living on earth?????.....how many human beings are living in a different planet than the planet earth?????.....is it true that alians are living creatures or not?????.........