A: I play Threes! a lot (I have yet to get 6144, however), and the 6144 tile is named "Volleo" (and all the names are localized if you set your phone language to something other than English!). Oh, also I finally got the 3072 tile!!
A: Just as Volleo was the name of the 6144 tile in Threes!, Whalend was the name of the 3072 tile, and I ended up using this one as a name for any alts I may have on some things (and no, I generally don't use alts to circumvent bans). All the tiles below 3072 have a "T" at the start of their name, and you can find all the graphics here. (Game website)