6609320189 has 2 divisors, whose sum is σ = 6609320190. Its totient is φ = 6609320188.

The previous prime is 6609320177. The next prime is 6609320269. The reversal of 6609320189 is 9810239066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3509614564 + 3099705625 = 59242^2 + 55675^2 .

It is a cyclic number.

It is not a de Polignac number, because 6609320189 - 2²⁰ = 6608271613 is a prime.

It is a super-2 number, since 2×6609320189² = 87366226721445991442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6609320489) 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 as a sum of consecutive naturals, namely, 3304660094 + 3304660095.

It is an arithmetic number, because the mean of its divisors is an integer number (3304660095).

Almost surely, 2^6609320189 is an apocalyptic number.

It is an amenable number.

6609320189 is a deficient number, since it is larger than the sum of its proper divisors (1).

6609320189 is an equidigital number, since it uses as much as digits as its factorization.

6609320189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 6609320189 is about 81297.7256077930. The cubic root of 6609320189 is about 1876.6599996854.

The spelling of 6609320189 in words is "six billion, six hundred nine million, three hundred twenty thousand, one hundred eighty-nine".