Mangog is a beast!
Many tells us over and over again with every other breath, he has the combined strength (but I doubt intellectual power LOL) of one billion, billion beings from a war-like race destroyed by Odin.
Now think about a billion. If you began to count right now and continued 24 hours a day, 7 days a week without a break and averaged counting one numeral per second, it would take about 32 years for you to count to a billion and 32,000 years to count to a trillion. BIG NUMBERS! I really doubt the authors of Mangog’s description took them into account. Too late now though; it’s out there..
A billion billion is 1 X 10^18, that's 1,000,000,000,000,000,000!!!
Now let us assume that each member of this war-like race (every man, woman, and child) could lift an average of 50 lbs over his/her head (a conservative figure for a war-like race I think), that's 1 X 10^18 X 50 = 5 X 10^19 pounds! Now multiply that by 2000 lbs/ton and you get 2.5 X 10^16 tons!!!
So Mangog could lift at least 2.5 X 10^16 tons = 25,000,000,000,000,000 Tons over his head!
NOW how does that compare with Odin's and Thor's 100 Tons?
Welllllllllllllll 2.5 X 10^16 divided by 100 X 102 =2.5 X 10^14 times stronger!!!
That means that Mangog is 250,000,000,000,000 (thats 250 trillion - it would take you 32,000 years to count to a trillion) times stronger than Thor or his daddy and hella stronger than Hulk!
Basically, there would be NOTHING left of the HULK if they danced. I'd like to see the story line though.
Personally I think Stan Lee and Jack Kirby made a big mistake by not doing their math and thereby giving Mangog so much strength because NOTHING can touch him.