1 trillion = 1 x 1012
Mass of Milky Way: 1.989 x 1042 kg
That's a BIG number. I've got my own conservation of mass program underway where I'm trying to transfer a few kg from my own mass back to the Milky Way. The Milky Way is welcome to my extra kg.
And definitely do not build any more military bases on Guam. That could be disastrous for the galaxy.
10 to the 42nd power. Once again proving that the hitchhikers guide to the galaxy is correct.