6605660603 has 4 divisors (see below), whose sum is σ = 6689276640. Its totient is φ = 6522044568.

The previous prime is 6605660597. The next prime is 6605660639. The reversal of 6605660603 is 3060665066.

6605660603 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6605660603 - 2⁴ = 6605660587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6605660683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41807900 + ... + 41808057.

It is an arithmetic number, because the mean of its divisors is an integer number (1672319160).

Almost surely, 2^6605660603 is an apocalyptic number.

6605660603 is a deficient number, since it is larger than the sum of its proper divisors (83616037).

6605660603 is an equidigital number, since it uses as much as digits as its factorization.

6605660603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83616036.

The product of its (nonzero) digits is 116640, while the sum is 38.

The square root of 6605660603 is about 81275.2151827358. The cubic root of 6605660603 is about 1876.3135663446.

The spelling of 6605660603 in words is "six billion, six hundred five million, six hundred sixty thousand, six hundred three".