Pope Francis is 81 years old. (birthdate December 17, 1936)
He was elected pope at the age of 76.
Pope Francis was 76 years old when he was elected as pope on March 13, 2013.
As of September 2013, Pope Francis is 76 years old.
Pope Benedict was 78 when he was elected Pope. Pope Francis was 76 years old and Pope John Paul II was just 58.
He was 33 years old when he was ordained.
Pope Francis is pope number 266.
Since Pope Francis is the first and only pope by that name, there is no need for a number after his name. If a pope in the future also decides to take the name Francis, he will become Pope Francis II and then the original Pope Francis will become Pope Francis I.
Pope Francis is the reigning pope in 2013.
Only Pope Francis and God know what Pope Francis thinks.
Currently (March 2013) the oldest pope in the Vatican is Pope Francis at 76 years of age. Pope Emeritus Benedict XVI is 86 years old. There is only one pope at a time and that is Pope Francis.
No, Pope Francis does not smoke.
Pope Francis has not been succeeded at the time of this answer.