Is Kuwait the richest country in the world?

Excuse me, could you please clarify something for me? I've heard some people discussing whether Kuwait is indeed the richest country in the world. Now, I understand that GDP per capita and total GDP are often used as metrics to measure a country's wealth, but I'm wondering if Kuwait really stands out in these categories? Are there any other factors that we should consider when assessing a country's richness? I'd appreciate it if you could elaborate on this matter.