6605605603 has 4 divisors (see below), whose sum is σ = 6717565080. Its totient is φ = 6493646128.

The previous prime is 6605605577. The next prime is 6605605609. The reversal of 6605605603 is 3065065066.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6605605603 - 2⁹ = 6605605091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6605605609) 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 in 3 ways as a sum of consecutive naturals, for example, 55979650 + ... + 55979767.

It is an arithmetic number, because the mean of its divisors is an integer number (1679391270).

Almost surely, 2^6605605603 is an apocalyptic number.

6605605603 is a deficient number, since it is larger than the sum of its proper divisors (111959477).

6605605603 is a wasteful number, since it uses less digits than its factorization.

6605605603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111959476.

The product of its (nonzero) digits is 97200, while the sum is 37.

The square root of 6605605603 is about 81274.8768254988. The cubic root of 6605605603 is about 1876.3083588143.

The spelling of 6605605603 in words is "six billion, six hundred five million, six hundred five thousand, six hundred three".