55220104144 has 20 divisors (see below), whose sum is σ = 107935760196. Its totient is φ = 27365714432.

The previous prime is 55220104127. The next prime is 55220104193. The reversal of 55220104144 is 44140102255.

It can be written as a sum of positive squares in 2 ways, for example, as 1414662544 + 53805441600 = 37612^2 + 231960^2 .

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 15269239 + ... + 15272854.

Almost surely, 2^55220104144 is an apocalyptic number.

It is an amenable number.

55220104144 is a deficient number, since it is larger than the sum of its proper divisors (52715656052).

55220104144 is a wasteful number, since it uses less digits than its factorization.

55220104144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30542214 (or 30542208 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 55220104144 its reverse (44140102255), we get a palindrome (99360206399).

The spelling of 55220104144 in words is "fifty-five billion, two hundred twenty million, one hundred four thousand, one hundred forty-four".