66832823866 has 16 divisors (see below), whose sum is σ = 100398628008. Its totient is φ = 33366643200.

The previous prime is 66832823807. The next prime is 66832823947.

It is a happy number.

66832823866 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 36527236641 + 30305587225 = 191121^2 + 174085^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66832823866.

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, 7080286 + ... + 7089718.

Almost surely, 2^66832823866 is an apocalyptic number.

66832823866 is a deficient number, since it is larger than the sum of its proper divisors (33565804142).

66832823866 is a wasteful number, since it uses less digits than its factorization.

66832823866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14337.

The product of its digits is 23887872, while the sum is 58.

The spelling of 66832823866 in words is "sixty-six billion, eight hundred thirty-two million, eight hundred twenty-three thousand, eight hundred sixty-six".