He was, but he was also skilled enough to get Schmi pregnant from half way across the galaxy by just manipulating midichlorians. He was always looking for a way to live eternally throughout the novels, though those aren't canon. Speaking of, the only mention of his race/how he looked, is Legends aswell. He might aswell be human now. I'm not sure if he looked like a muun in the movie.
But yeah, in Legends, Palpatine lives through a clone body. Iirc, Plageuis was the mastermind behind Palpatine's rise to power, he might've done something similiar.
23-Dec-2015 11:38:59