K = thousand M = million B = billion T = trillion Qa = quadrillion Qi = quintillion Sx = sextillion Sp = septillion O = octillion N = nonillion D = decillion UD = undecillion DD = duodecillion TD = tredecillion QaDc = quattuordecillion ... Vi = vigintillion ... Tg = trigintillion Qd = quadragintillion Qq
In my abbreviations, 1 quinquagintillion is 1Qng.
