6606065085749 has 2 divisors, whose sum is σ = 6606065085750. Its totient is φ = 6606065085748.

The previous prime is 6606065085733. The next prime is 6606065085791. The reversal of 6606065085749 is 9475805606066.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6451473000625 + 154592085124 = 2539975^2 + 393182^2 .

It is a cyclic number.

It is not a de Polignac number, because 6606065085749 - 2⁴ = 6606065085733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6606065085691 and 6606065085700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6606065085709) 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 as a sum of consecutive naturals, namely, 3303032542874 + 3303032542875.

It is an arithmetic number, because the mean of its divisors is an integer number (3303032542875).

Almost surely, 2^{6606065085749} is an apocalyptic number.

It is an amenable number.

6606065085749 is a deficient number, since it is larger than the sum of its proper divisors (1).

6606065085749 is an equidigital number, since it uses as much as digits as its factorization.

6606065085749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65318400, while the sum is 62.

The spelling of 6606065085749 in words is "six trillion, six hundred six billion, sixty-five million, eighty-five thousand, seven hundred forty-nine".