220511144144 has 20 divisors (see below), whose sum is σ = 427248804996. Its totient is φ = 110253388032.

The previous prime is 220511144069. The next prime is 220511144207. The reversal of 220511144144 is 441441115022.

220511144144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 214869331600 + 5641812544 = 463540^2 + 75112^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 966572 + ... + 1172724.

Almost surely, 2^220511144144 is an apocalyptic number.

It is an amenable number.

220511144144 is a deficient number, since it is larger than the sum of its proper divisors (206737660852).

220511144144 is a wasteful number, since it uses less digits than its factorization.

220511144144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273014 (or 273008 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

Adding to 220511144144 its reverse (441441115022), we get a palindrome (661952259166).

The spelling of 220511144144 in words is "two hundred twenty billion, five hundred eleven million, one hundred forty-four thousand, one hundred forty-four".