66065660156527 has 2 divisors, whose sum is σ = 66065660156528. Its totient is φ = 66065660156526.

The previous prime is 66065660156477. The next prime is 66065660156537. The reversal of 66065660156527 is 72565106656066.

66065660156527 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 66065660156527 - 2²⁷ = 66065525938799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66065660156537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33032830078263 + 33032830078264.

It is an arithmetic number, because the mean of its divisors is an integer number (33032830078264).

Almost surely, 2^{66065660156527} is an apocalyptic number.

66065660156527 is a deficient number, since it is larger than the sum of its proper divisors (1).

66065660156527 is an equidigital number, since it uses as much as digits as its factorization.

66065660156527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648000, while the sum is 61.

The spelling of 66065660156527 in words is "sixty-six trillion, sixty-five billion, six hundred sixty million, one hundred fifty-six thousand, five hundred twenty-seven".