3665445671 has 2 divisors, whose sum is σ = 3665445672. Its totient is φ = 3665445670.

The previous prime is 3665445601. The next prime is 3665445697. The reversal of 3665445671 is 1765445663.

It is a strong prime.

It is an emirp because it is prime and its reverse (1765445663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3665445671 - 2²² = 3661251367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3665445601) 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, 1832722835 + 1832722836.

It is an arithmetic number, because the mean of its divisors is an integer number (1832722836).

Almost surely, 2^3665445671 is an apocalyptic number.

3665445671 is a deficient number, since it is larger than the sum of its proper divisors (1).

3665445671 is an equidigital number, since it uses as much as digits as its factorization.

3665445671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 47.

The square root of 3665445671 is about 60542.9242025854. The cubic root of 3665445671 is about 1541.8504869271.

The spelling of 3665445671 in words is "three billion, six hundred sixty-five million, four hundred forty-five thousand, six hundred seventy-one".