66755285119 has 2 divisors, whose sum is σ = 66755285120. Its totient is φ = 66755285118.

The previous prime is 66755285063. The next prime is 66755285137. The reversal of 66755285119 is 91158255766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66755285119 - 2¹⁷ = 66755154047 is a prime.

It is a super-2 number, since 2×66755285119² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66755285119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66755285419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33377642559 + 33377642560.

It is an arithmetic number, because the mean of its divisors is an integer number (33377642560).

Almost surely, 2^66755285119 is an apocalyptic number.

66755285119 is a deficient number, since it is larger than the sum of its proper divisors (1).

66755285119 is an equidigital number, since it uses as much as digits as its factorization.

66755285119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536000, while the sum is 55.

The spelling of 66755285119 in words is "sixty-six billion, seven hundred fifty-five million, two hundred eighty-five thousand, one hundred nineteen".