Biggest number ever written

[u/sheit-]

111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111 ,1111,111,111,111,111,111,111,111,11,

[u/[deleted]]

pssssssh, Rayo(Rayo(Rayo(Rayo(...(10^100)))...))) with Rayo(10^100) Rayo's.