We use the folowing system to make big numbers easily recognizable and comparable.
  • -
  • K - Kilo / Thousand (1E+3)
  • M - Million (1E+6)
  • B - Billion (1E+9)
  • T - Trilion (1E+12)
  • aa - Quadrillion (1E+15)
  • ab - Quintillion (1E+18)
  • ac - Sextillion (1E+21)
  • ad - Septillion (1E+24)
  • ae - Octillion (1E+27)
  • af - Nonillion (1E+30)
  • ag - Decillion (1E+33)
  • ah - Undecillion (1E+36)
  • ai - Duodecillion (1E+39)
  • aj - Tredecillion (1E+42)
  • ak - Quattuordecillion (1E+45)
  • al - Quindecillion (1E+48)
  • am - Sexdecillion (1E+51)
  • an - Septdecillion (1E+54)
  • ao - Octodecillion (1E+57)
  • ap - Novemdecillion (1E+60)
  • aq - Vigintillion (1E+63)
    etc...