Asaṃkhyeya

An  (असंख्येय) is a Buddhist name for the number 10140, or alternatively for the number $$10^{(a\cdot2^b)}$$ as it is described in the Avatamsaka Sutra. The value of the number is different depending upon the translation. It is $$10^{(5\cdot2^{103})}$$ in the translation of Buddhabhadra, $$10^{(7\cdot2^{103})}$$ in that of Shikshananda and $$10^{(10\cdot2^{104})}$$ in that of Thomas Cleary, who may have made an error in calculation. In these religious traditions, the word has the meaning of 'incalculable'.

Asaṃkhyeya is a Sanskrit word that appears often in the Buddhist texts. For example, Shakyamuni Buddha is said to have practiced for 4 great asaṃkhyeya kalpas before becoming a Buddha.