There's at least 102 million angels in existence.
Revelation 5 verse 11 talks about the number of them being 10,000 times 10,000 and thousands
of thousands.
This is an approximate number and doesn't include the one-third of angels that fell
with Satan.
Number two is that angels in the Bible are synonymous with seraphims and cherubims.
These are two categories of angels known as living creatures and beasts with an anthropomorphic
body.
The cherubims have four wings with four faces, the likeness of a man, lion, eagle, and an
ox.
The seraphims have six wings with one face of the same likeness.
Ezekiel chapter 1 describes the speed at which the cherubims move as the appearance of a
flash of lightning.
They have eyes within and without and are accompanied by wheels within wheels.
Number three is that one of the most powerful angels in the Bible is Apollyon, also known
as Abaddon in the Hebrew tongue, which means the destroyer.
He first makes his appearance in Exodus chapter 12 as being the tenth plague, reappears in
chapter 9, releasing the locusts, and then in chapter 20 to bind Satan into the bottomless
pit.