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Austin Sendek, a physics student at UC Davis, wants the number of 10 to the 27th power — a trillion trillions — to officially become “hella” big.

Along the lines of using the “kilo” prefix for kilometers or “giga” for gigabyte, Sendek is petitioning the International System of Units (SI) to use the term “hella” to describe really, really big measurements; such as the size of the universe.

For reference:

• 10 = deca
• 100 = hecto
• 1,000 = kilo
• 1,000,000 = mega
• 1,000,000,000 = giga
• 1,000,000,000,000 = tera
• 1,000,000,000,000,000 = peta
• 1,000,000,000,000,000,000 = exa
• 1,000,000,000,000,000,000,000 = zetta
• 1,000,000,000,000,000,000,000,000 = yotta
• 1,000,000,000,000,000,000,000,000,000 = proposed “hella”