66862226866 has 32 divisors (see below), whose sum is σ = 105192172800. Its totient is φ = 31813393920.

The previous prime is 66862226831. The next prime is 66862226867.

It is a happy number.

66862226866 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 66862226866.

It is not an unprimeable number, because it can be changed into a prime (66862226867) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14287515 + ... + 14292193.

It is an arithmetic number, because the mean of its divisors is an integer number (3287255400).

Almost surely, 2^66862226866 is an apocalyptic number.

66862226866 is a deficient number, since it is larger than the sum of its proper divisors (38329945934).

66862226866 is a wasteful number, since it uses less digits than its factorization.

66862226866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6234.

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

The spelling of 66862226866 in words is "sixty-six billion, eight hundred sixty-two million, two hundred twenty-six thousand, eight hundred sixty-six".