6660768 has 24 divisors (see below), whose sum is σ = 17484768. Its totient is φ = 2220224.

The previous prime is 6660763. The next prime is 6660781. The reversal of 6660768 is 8670666.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (6660763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34596 + ... + 34787.

It is an arithmetic number, because the mean of its divisors is an integer number (728532).

Almost surely, 2^6660768 is an apocalyptic number.

It is an amenable number.

6660768 is an abundant number, since it is smaller than the sum of its proper divisors (10824000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6660768 is a wasteful number, since it uses less digits than its factorization.

6660768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69396 (or 69388 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 6660768 is about 2580.8463728010. The cubic root of 6660768 is about 188.1516808183.

The spelling of 6660768 in words is "six million, six hundred sixty thousand, seven hundred sixty-eight".