66077825575783 has 12 divisors (see below), whose sum is σ = 76867612877160. Its totient is φ = 56636978716752.

The previous prime is 66077825575747. The next prime is 66077825575793. The reversal of 66077825575783 is 38757552877066.

66077825575783 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66077825575783 - 2²⁹ = 66077288704871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66077825575793) 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 in 11 ways as a sum of consecutive naturals, for example, 11353216 + ... + 16157077.

It is an arithmetic number, because the mean of its divisors is an integer number (6405634406430).

Almost surely, 2^{66077825575783} is an apocalyptic number.

66077825575783 is a deficient number, since it is larger than the sum of its proper divisors (10789787301377).

66077825575783 is a wasteful number, since it uses less digits than its factorization.

66077825575783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27559326 (or 27559319 counting only the distinct ones).

The product of its (nonzero) digits is 4148928000, while the sum is 76.

The spelling of 66077825575783 in words is "sixty-six trillion, seventy-seven billion, eight hundred twenty-five million, five hundred seventy-five thousand, seven hundred eighty-three".