http://news.nationalgeographic.com/news/2007/06/070619-amazon-river.html Amazon Longer Than Nile River, Scientists Say] The Nile, which is about 6650 kilometers long, is an "international" river as its drainage basin covers eleven countries, namely, Tanzania, Uganda, Rwanda, Burundi, the Democratic Republic of the Congo, Kenya, Ethiopia, Eritrea, South Sudan, Republic of the Sudan and Egypt.