Currently the largest possible measurement for data storage. (Bytes)
One geopbyte is 1024^10 or 1267650600228229401496703205376 bytes. Or simply a 1 followed by 30 digits. (Not zeroes)
You may soon need a geopbyte worth of free disk space in order to download a movie from the internet.
The highest one of the "byte" family so far. A geopbyte is 1,000,000,000,000,000,000,000,000,000,000 bytes. One followed by 30 zeros.
If you have a 1 geopbyte in everything in your computer, you're a computer god.