Scientists are lobbying for a new word to help them describe numbers larger  than 1,000,000,000,000,000,000,000,000,000, amid concerns that the current  system of units is insufficient.
Hella is North Californian slang for "very" or "a lot of". Mr Sendek and his  supporters argue that its adoption would be a fitting honour for the state's  impressive record of scientific research.
FULL LIST OF SI PREFIXES 
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
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