Ok. Now. Here's some calculations. Do let me know if they're off as I am somewhat distracted by eating a soup-like-lasagne.
(cats * cat weight)/one million cm3 per m3 = total m3 of cats
(600000000*4000)/1000000 = 2.400.000
So if we blend* the entire global cat population together we have a pile of 2.4 million cubic meters of, uhm, cat-goop (?)
3/x

