Ten Thousand Billion Rakshas

Thereupon, Vahni came there and saw his son Guha who had six heads, ears twice as many and twelve eyes, arms and feet. He had only one neck and one body. He looked at Kumara 

1. who was a mere lump of flesh on the first day. 
2. On the second day it had the form of an individual. 
3. On the third day ne became an infant. 
4. On the fourth day he became a complete (i.e. full grown) one. He was consecrated on the fifth day.

He saw 249 I.ii.29.153-167 Fire-god. Thereupon, O son of Prtha, Pavaka (Fire-god) embrac¬ ed him and kissed him. He addressed him as “O son” and granted him the Sakti missile himself. He received the Sakti and bowed down to Fire-god. He then climbed on to Svetasrnga, seeing and survey¬ ing all the ten directions with his faces. He shouted terribly striking terror into the whole universe including the Asuras. Then, with his Sakti he split the peak of Sveta mountain that extended to a hundred Yojanas and that was surrounded by ten thousand billions of Rak$asas. With a single stroke it fell down on the earth in smithereens. Those Rak$asas who were the perpetual enemies of Dharma (virtue, piety) were smashed. Then the ground all round was agitated (i.e. quaked heavily) and was shattered completely. All the mountains became frightened. Everyone cried aloud as though at the time of ultimate deluge. All.the living beings shouted loudly, “Save, save (us).”

Source

https://freeglobaluniversity.blogspot.com/search/label/Skanda