Most songs in a spotify playlist?

I wanted to know what is the most number of songs one can put in a Spotify playlist, I googled, but I did not find an answer. So I created a collaborative playlist. If you would like to know as well please put a song or two that you *really* like in it and ask someone you know to do the same (please don't dump your entire music collection in it, because if we can build a playlist with good songs along the way, why not do it? I am not saying your taste in music is not all good, but let's face it, it isn't)