660005011 has 2 divisors, whose sum is σ = 660005012. Its totient is φ = 660005010.

The previous prime is 660004967. The next prime is 660005039. The reversal of 660005011 is 110500066.

660005011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 660005011 - 2⁷ = 660004883 is a prime.

It is a super-2 number, since 2×660005011² = 871213229090220242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 660005011.

It is not a weakly prime, because it can be changed into another prime (660005051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330002505 + 330002506.

It is an arithmetic number, because the mean of its divisors is an integer number (330002506).

Almost surely, 2^660005011 is an apocalyptic number.

660005011 is a deficient number, since it is larger than the sum of its proper divisors (1).

660005011 is an equidigital number, since it uses as much as digits as its factorization.

660005011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 660005011 is about 25690.5626836004. The cubic root of 660005011 is about 870.6609725820.

Adding to 660005011 its reverse (110500066), we get a palindrome (770505077).

The spelling of 660005011 in words is "six hundred sixty million, five thousand, eleven".