It's normal for a cat to poop once a day.
For adult cats, defecating once a day is normal. Generally, the frequency of a cat's bowel movements depends on individual differences and the type of cat food it eats. If a cat eats more cat food daily, its bowel movements will be more frequent. However, it's important to note that if a cat defecates five or six times a day or more, it may have diarrhea. 
What to do if cat poop smells bad?
Cats are obligate carnivores, consuming a high-protein diet, so their feces naturally have a strong odor. This cannot be changed. The solution is to use safe, odor-masking cat litter to mask the smell, and to clean the litter box immediately after the cat defecates. The litter must be changed regularly. The litter box must be disinfected periodically, and you can also buy pet air fresheners to ensure good ventilation.
