(dated Britain and Australia, long scale) A quadrillionquintillion: 1 followed by 48 zeros, 1048.
Examples
He never learnt that communication is the essence of a game in which there are, on his son's reckoning, 635 billion possible individual hands and 53 octillion possible full deals.
That's equivalent to 50 octillion addresses for every man, woman and child living in the world today, which experts believe should support the Internet for centuries to come.