What is the largest river flowing through Congo Basin and emptying into Atlantic ocean?

The Congo River (also known as the Zaire River) is the largest river flowing through the Congo Basin and emptying into the Atlantic Ocean. It is the second-longest river in Africa, after the Nile, and the deepest river in the world, with an average depth of around 100 feet. The Congo River Basin is the second largest river basin in the world, after the Amazon River Basin, and covers an area of over 3.7 million square kilometers.