8660220668 has 24 divisors (see below), whose sum is σ = 16544304000. Its totient is φ = 3933807920.

The previous prime is 8660220661. The next prime is 8660220677.

It is a happy number.

8660220668 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8660220661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305 + ... + 131607.

It is an arithmetic number, because the mean of its divisors is an integer number (689346000).

Almost surely, 2^8660220668 is an apocalyptic number.

It is an amenable number.

8660220668 is a deficient number, since it is larger than the sum of its proper divisors (7884083332).

8660220668 is a wasteful number, since it uses less digits than its factorization.

8660220668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132817 (or 132815 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 8660220668 is about 93060.3066188802. The cubic root of 8660220668 is about 2053.5706692010.

The spelling of 8660220668 in words is "eight billion, six hundred sixty million, two hundred twenty thousand, six hundred sixty-eight".