6600247061 has 2 divisors, whose sum is σ = 6600247062. Its totient is φ = 6600247060.

The previous prime is 6600247021. The next prime is 6600247079. The reversal of 6600247061 is 1607420066.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5354580625 + 1245666436 = 73175^2 + 35294^2 .

It is a cyclic number.

It is not a de Polignac number, because 6600247061 - 2²⁶ = 6533138197 is a prime.

It is a super-2 number, since 2×6600247061² = 87126522532478275442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6600247021) 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, 3300123530 + 3300123531.

It is an arithmetic number, because the mean of its divisors is an integer number (3300123531).

Almost surely, 2^6600247061 is an apocalyptic number.

It is an amenable number.

6600247061 is a deficient number, since it is larger than the sum of its proper divisors (1).

6600247061 is an equidigital number, since it uses as much as digits as its factorization.

6600247061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 6600247061 is about 81241.9045874726. The cubic root of 6600247061 is about 1875.8008607038.

The spelling of 6600247061 in words is "six billion, six hundred million, two hundred forty-seven thousand, sixty-one".