5255441558666 has 32 divisors (see below), whose sum is σ = 8992184317200. Its totient is φ = 2282084130816.

The previous prime is 5255441558621. The next prime is 5255441558669. The reversal of 5255441558666 is 6668551445525.

It can be written as a sum of positive squares in 8 ways, for example, as 3104569996441 + 2150871562225 = 1761979^2 + 1466585^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5255441558599 and 5255441558608.

It is not an unprimeable number, because it can be changed into a prime (5255441558669) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 913391 + ... + 3368258.

Almost surely, 2^{5255441558666} is an apocalyptic number.

5255441558666 is a deficient number, since it is larger than the sum of its proper divisors (3736742758534).

5255441558666 is a wasteful number, since it uses less digits than its factorization.

5255441558666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4284458.

The product of its digits is 172800000, while the sum is 62.

The spelling of 5255441558666 in words is "five trillion, two hundred fifty-five billion, four hundred forty-one million, five hundred fifty-eight thousand, six hundred sixty-six".