6665011 has 2 divisors, whose sum is σ = 6665012. Its totient is φ = 6665010.

The previous prime is 6664997. The next prime is 6665017. The reversal of 6665011 is 1105666.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6665011 - 2⁵ = 6664979 is a prime.

It is not a weakly prime, because it can be changed into another prime (6665017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3332505 + 3332506.

It is an arithmetic number, because the mean of its divisors is an integer number (3332506).

Almost surely, 2^6665011 is an apocalyptic number.

6665011 is a deficient number, since it is larger than the sum of its proper divisors (1).

6665011 is an equidigital number, since it uses as much as digits as its factorization.

6665011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 6665011 is about 2581.6682590914. The cubic root of 6665011 is about 188.1916240664.

The spelling of 6665011 in words is "six million, six hundred sixty-five thousand, eleven".