66111335510711 has 2 divisors, whose sum is σ = 66111335510712. Its totient is φ = 66111335510710.

The previous prime is 66111335510629. The next prime is 66111335510719. The reversal of 66111335510711 is 11701553311166.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66111335510711 - 2³⁸ = 65836457603767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66111335510719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33055667755355 + 33055667755356.

It is an arithmetic number, because the mean of its divisors is an integer number (33055667755356).

Almost surely, 2^{66111335510711} is an apocalyptic number.

66111335510711 is a deficient number, since it is larger than the sum of its proper divisors (1).

66111335510711 is an equidigital number, since it uses as much as digits as its factorization.

66111335510711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 41.

Adding to 66111335510711 its reverse (11701553311166), we get a palindrome (77812888821877).

The spelling of 66111335510711 in words is "sixty-six trillion, one hundred eleven billion, three hundred thirty-five million, five hundred ten thousand, seven hundred eleven".