6660430144 has 14 divisors (see below), whose sum is σ = 13216791194. Its totient is φ = 3330215040.

The previous prime is 6660430141. The next prime is 6660430163. The reversal of 6660430144 is 4410340666.

It can be written as a sum of positive squares in only one way, i.e., 4440889600 + 2219540544 = 66640^2 + 47112^2 .

It is a super-2 number, since 2×6660430144² = 88722659406207721472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660430141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52034547 + ... + 52034674.

Almost surely, 2^6660430144 is an apocalyptic number.

6660430144 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6660430144 is a deficient number, since it is larger than the sum of its proper divisors (6556361050).

6660430144 is a wasteful number, since it uses less digits than its factorization.

6660430144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104069233 (or 104069223 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 6660430144 is about 81611.4584111815. The cubic root of 6660430144 is about 1881.4849954102.

The spelling of 6660430144 in words is "six billion, six hundred sixty million, four hundred thirty thousand, one hundred forty-four".