3666655073 has 2 divisors, whose sum is σ = 3666655074. Its totient is φ = 3666655072.

The previous prime is 3666655043. The next prime is 3666655099. The reversal of 3666655073 is 3705566663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1912050529 + 1754604544 = 43727^2 + 41888^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3666655073 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 (3666655043) 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, 1833327536 + 1833327537.

It is an arithmetic number, because the mean of its divisors is an integer number (1833327537).

Almost surely, 2^3666655073 is an apocalyptic number.

It is an amenable number.

3666655073 is a deficient number, since it is larger than the sum of its proper divisors (1).

3666655073 is an equidigital number, since it uses as much as digits as its factorization.

3666655073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2041200, while the sum is 47.

The square root of 3666655073 is about 60552.9113503224. The cubic root of 3666655073 is about 1542.0200444818.

The spelling of 3666655073 in words is "three billion, six hundred sixty-six million, six hundred fifty-five thousand, seventy-three".