66822171118 has 16 divisors (see below), whose sum is σ = 100827861120. Its totient is φ = 33213449016.

The previous prime is 66822171061. The next prime is 66822171121. The reversal of 66822171118 is 81117122866.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 96271 + ... + 378037.

It is an arithmetic number, because the mean of its divisors is an integer number (6301741320).

Almost surely, 2^66822171118 is an apocalyptic number.

66822171118 is a deficient number, since it is larger than the sum of its proper divisors (34005690002).

66822171118 is a wasteful number, since it uses less digits than its factorization.

66822171118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282471.

The product of its digits is 64512, while the sum is 43.

The spelling of 66822171118 in words is "sixty-six billion, eight hundred twenty-two million, one hundred seventy-one thousand, one hundred eighteen".