6666316144 has 40 divisors (see below), whose sum is σ = 13228372080. Its totient is φ = 3252684288.

The previous prime is 6666316141. The next prime is 6666316147. The reversal of 6666316144 is 4416136666.

It is an interprime number because it is at equal distance from previous prime (6666316141) and next prime (6666316147).

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 6666316144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666316141) 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, 883074 + ... + 890590.

It is an arithmetic number, because the mean of its divisors is an integer number (330709302).

Almost surely, 2^6666316144 is an apocalyptic number.

It is an amenable number.

6666316144 is a deficient number, since it is larger than the sum of its proper divisors (6562055936).

6666316144 is a wasteful number, since it uses less digits than its factorization.

6666316144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8857 (or 8851 counting only the distinct ones).

The product of its digits is 373248, while the sum is 43.

The square root of 6666316144 is about 81647.5115603654. The cubic root of 6666316144 is about 1882.0390717381.

The spelling of 6666316144 in words is "six billion, six hundred sixty-six million, three hundred sixteen thousand, one hundred forty-four".