Perfect Square
19668242027793707011969252474907890838640400 is a perfect square (4434889178749983941020 × 4434889178749983941020)
19668242027793707011969252474907890838640400 is a perfect square (4434889178749983941020 × 4434889178749983941020)
11100001 11000111 11000100 10111011 01111010 01110100 10101110 01000101 01011001 00101001 10100110 10010010 01011011 00111111 00111011 10000111 10010111 00010000
19668242027793707011969252474907890838640400 is even
Previous even number is 19668242027793707011969252474907890838640398
Next even number is 19668242027793707011969252474907890838640402
7608457720085279937549062017917455134021337253183286716987973160871098532816423231066595999005251225565381429529284606067264000000
386839744463870711949506457938363442184417221075999781935461350767586368829720512160000