3066580721 has 2 divisors, whose sum is σ = 3066580722. Its totient is φ = 3066580720.

The previous prime is 3066580711. The next prime is 3066580739. The reversal of 3066580721 is 1270856603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3066390625 + 190096 = 55375^2 + 436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3066580721 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3066580711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1533290360 + 1533290361.

It is an arithmetic number, because the mean of its divisors is an integer number (1533290361).

Almost surely, 2^3066580721 is an apocalyptic number.

It is an amenable number.

3066580721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3066580721 is an equidigital number, since it uses as much as digits as its factorization.

3066580721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 3066580721 is about 55376.7164158367. The cubic root of 3066580721 is about 1452.8411548420.

The spelling of 3066580721 in words is "three billion, sixty-six million, five hundred eighty thousand, seven hundred twenty-one".