Tethra-ogdon

The tethra-ogdon is equal to E100#^^#^#8 = E100#^^########100 in Extended Cascading-E Notation. The term was coined by Sbiis Saibian.

Etymology
The name of this number is based on the number tethrathoth and the root "yotton" from "polyyotton". Polyyotton is the name for a 9-dimensional figure and 9-D figures are constructed from multiple 8-D figures (hence the "poly"), so a "yotton" can be considered a 8-dimensional figure.