6605840441 has 4 divisors (see below), whose sum is σ = 6606643584. Its totient is φ = 6605037300.

The previous prime is 6605840413. The next prime is 6605840509. The reversal of 6605840441 is 1440485066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6605840441 - 2⁶ = 6605840377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6605840395 and 6605840404.

It is not an unprimeable number, because it can be changed into a prime (6605840141) 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, 389105 + ... + 405726.

It is an arithmetic number, because the mean of its divisors is an integer number (1651660896).

Almost surely, 2^6605840441 is an apocalyptic number.

It is an amenable number.

6605840441 is a deficient number, since it is larger than the sum of its proper divisors (803143).

6605840441 is an equidigital number, since it uses as much as digits as its factorization.

6605840441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803142.

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 6605840441 is about 81276.3215272443. The cubic root of 6605840441 is about 1876.3305936306.

The spelling of 6605840441 in words is "six billion, six hundred five million, eight hundred forty thousand, four hundred forty-one".