Best odor eliminating cat litter?

We have three cats, using one litter box. It's scooped once a day, fully cleaned once a week. The stench is unbearable though. If you're a cat owner, what do you use and are satisfied with? We need something that eliminates urine and feces odor, even right after it's used. Cause that's usually when it smells the most. Is there any litter that fully eliminates the smell?