3665729663 has 2 divisors, whose sum is σ = 3665729664. Its totient is φ = 3665729662.

The previous prime is 3665729629. The next prime is 3665729671. The reversal of 3665729663 is 3669275663.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3665729663 - 2⁸ = 3665729407 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3665729693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832864831 + 1832864832.

It is an arithmetic number, because the mean of its divisors is an integer number (1832864832).

Almost surely, 2^3665729663 is an apocalyptic number.

3665729663 is a deficient number, since it is larger than the sum of its proper divisors (1).

3665729663 is an equidigital number, since it uses as much as digits as its factorization.

3665729663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7348320, while the sum is 53.

The square root of 3665729663 is about 60545.2695344566. The cubic root of 3665729663 is about 1541.8903058136.

The spelling of 3665729663 in words is "three billion, six hundred sixty-five million, seven hundred twenty-nine thousand, six hundred sixty-three".