5806666321 has 2 divisors, whose sum is σ = 5806666322. Its totient is φ = 5806666320.

The previous prime is 5806666297. The next prime is 5806666331. The reversal of 5806666321 is 1236666085.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5717628225 + 89038096 = 75615^2 + 9436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5806666321 is a prime.

It is not a weakly prime, because it can be changed into another prime (5806666331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2903333160 + 2903333161.

It is an arithmetic number, because the mean of its divisors is an integer number (2903333161).

Almost surely, 2^5806666321 is an apocalyptic number.

It is an amenable number.

5806666321 is a deficient number, since it is larger than the sum of its proper divisors (1).

5806666321 is an equidigital number, since it uses as much as digits as its factorization.

5806666321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 5806666321 is about 76201.4850314612. The cubic root of 5806666321 is about 1797.3898713803.

The spelling of 5806666321 in words is "five billion, eight hundred six million, six hundred sixty-six thousand, three hundred twenty-one".