What is the biggest data type?

[AlitCandle]

I'm trying to write a code that converts a number to scientific notation. For this I need a bigger data type than int that can store large numbers + large decimals.

[AlitCandle]

I wanted to write a code that converts a number to scientific notation, only to find out long doubles already do that :/

[agnophilo]

For future reference (scroll to the chart):

http://cplusplus.com/doc/tutorial/variables/