Como Recuperar Datos De Mi Celular Que No Enciende

18 exabytes? Or 16 exabytes? The reason you said 18 exabytes is because it is based on 18,446,744,073,709,551,616 bytes. 18 exabytes if you use the decimal definition of exabytes. 16 exabytes if you use the binary definition of exabytes.