LOT means batch or group of items. LOTO is a derivative of the word "lottery." It also suggests "many" (as in, "a lot" of things). This domain name is ideal for any website focusing on gaming, gambling, or online bulk sales.
LOTOM.COM is a great and brandable domain name very short, only 5 letters. Easy to spell and easy to remember. The business domain names is registered since Apr-2004.