6605361853 has 4 divisors (see below), whose sum is σ = 6612843328. Its totient is φ = 6597880380.

The previous prime is 6605361817. The next prime is 6605361899. The reversal of 6605361853 is 3581635066.

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 6605361853 - 2²⁹ = 6068490941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6605362853) 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, 3739413 + ... + 3741178.

It is an arithmetic number, because the mean of its divisors is an integer number (1653210832).

Almost surely, 2^6605361853 is an apocalyptic number.

It is an amenable number.

6605361853 is a deficient number, since it is larger than the sum of its proper divisors (7481475).

6605361853 is an equidigital number, since it uses as much as digits as its factorization.

6605361853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7481474.

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 6605361853 is about 81273.3772707890. The cubic root of 6605361853 is about 1876.2852796391.

The spelling of 6605361853 in words is "six billion, six hundred five million, three hundred sixty-one thousand, eight hundred fifty-three".