3665345443 has 4 divisors (see below), whose sum is σ = 3667625080. Its totient is φ = 3663065808.

The previous prime is 3665345417. The next prime is 3665345447. The reversal of 3665345443 is 3445435663.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3665345443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3665345443.

It is not an unprimeable number, because it can be changed into a prime (3665345447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1137405 + ... + 1140622.

It is an arithmetic number, because the mean of its divisors is an integer number (916906270).

Almost surely, 2^3665345443 is an apocalyptic number.

3665345443 is a deficient number, since it is larger than the sum of its proper divisors (2279637).

3665345443 is a wasteful number, since it uses less digits than its factorization.

3665345443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279636.

The product of its digits is 1555200, while the sum is 43.

The square root of 3665345443 is about 60542.0964536247. The cubic root of 3665345443 is about 1541.8364333382.

The spelling of 3665345443 in words is "three billion, six hundred sixty-five million, three hundred forty-five thousand, four hundred forty-three".