220040444473 has 2 divisors, whose sum is σ = 220040444474. Its totient is φ = 220040444472.

The previous prime is 220040444431. The next prime is 220040444497. The reversal of 220040444473 is 374444040022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209753008144 + 10287436329 = 457988^2 + 101427^2 .

It is a cyclic number.

It is not a de Polignac number, because 220040444473 - 2¹⁷ = 220040313401 is a prime.

It is not a weakly prime, because it can be changed into another prime (220040444413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110020222236 + 110020222237.

It is an arithmetic number, because the mean of its divisors is an integer number (110020222237).

Almost surely, 2^220040444473 is an apocalyptic number.

It is an amenable number.

220040444473 is a deficient number, since it is larger than the sum of its proper divisors (1).

220040444473 is an equidigital number, since it uses as much as digits as its factorization.

220040444473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 34.

Adding to 220040444473 its reverse (374444040022), we get a palindrome (594484484495).

The spelling of 220040444473 in words is "two hundred twenty billion, forty million, four hundred forty-four thousand, four hundred seventy-three".