66874227158 has 16 divisors (see below), whose sum is σ = 100947168000. Its totient is φ = 33225311016.

The previous prime is 66874227149. The next prime is 66874227187. The reversal of 66874227158 is 85172247866.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 968285 + ... + 1035047.

It is an arithmetic number, because the mean of its divisors is an integer number (6309198000).

Almost surely, 2^66874227158 is an apocalyptic number.

66874227158 is a deficient number, since it is larger than the sum of its proper divisors (34072940842).

66874227158 is a wasteful number, since it uses less digits than its factorization.

66874227158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69931.

The product of its digits is 9031680, while the sum is 56.

The spelling of 66874227158 in words is "sixty-six billion, eight hundred seventy-four million, two hundred twenty-seven thousand, one hundred fifty-eight".