66755285063 has 2 divisors, whose sum is σ = 66755285064. Its totient is φ = 66755285062.

The previous prime is 66755285057. The next prime is 66755285119. The reversal of 66755285063 is 36058255766.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66755285063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66755284996 and 66755285014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66755285053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33377642531 + 33377642532.

It is an arithmetic number, because the mean of its divisors is an integer number (33377642532).

Almost surely, 2^66755285063 is an apocalyptic number.

66755285063 is a deficient number, since it is larger than the sum of its proper divisors (1).

66755285063 is an equidigital number, since it uses as much as digits as its factorization.

66755285063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072000, while the sum is 53.

The spelling of 66755285063 in words is "sixty-six billion, seven hundred fifty-five million, two hundred eighty-five thousand, sixty-three".