Yes
Its possible
It is possible that someday astronomers will measure all the distances of the 100 billion galaxies in the universe.
It is possible that astronomers will measure all the sizes of 100 billion galaxies in the observable universe.
It is possible that someday astronomers have all J2000 coordinates of 100 billion galaxies in the observable universe.
100 billion
There's an impossible way to classify all the shapes of 100 billion galaxies in the universe.
100 billion
100 thousand million is equal to 100 billion. This is because one billion is equivalent to one thousand million. Therefore, when you have 100 thousand million, you have 100 times one billion, which equals 100 billion.
0.1
It is not possible to list all designations and redshifts of all 100 billion galaxies (cseligman.com/text/atlas/pgc00.htm)
100 billion multiplied by 100 billion equals 10,000,000,000,000,000,000, or 10 quintillion. In numerical form, this is represented as (10^{20}).
100 billion = 10000