2 of 64 July 8, 2019 16 32 64 128 2 of 640 2 of 64000 2 of 6400 2 of 640 000 2 of 64 million 2 of 64 lakh 2 of 647 2 of 649 2 of 648 2 of 646 2 of 6450 2 of 6480 2 3 of 64 2 power of 64 25 2 of 64