It is a cyclic number.
It is a Duffinian number.
It is a congruent number.
Almost surely, 220380576554421 is an apocalyptic number.
It is an amenable number.
20380576554421 is an equidigital number, since it uses as much as digits as its factorization.
20380576554421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 45094922.
The spelling of 20380576554421 in words is "twenty trillion, three hundred eighty billion, five hundred seventy-six million, five hundred fifty-four thousand, four hundred twenty-one".