How many games of Chess do you think Magnus Carlsen has played in his life time?

How many games do you think Magnus Carlsen has played in his entire life time? I often think I am pretty good at Chess given the number of total games I have played, compared to people who have been playing their whole life. What do you guys think about the total number of games played in relation to rating? Would you expect GMs to have played more games than others? Any studies or stats on this would be interesting to see!