6666280163 has 8 divisors (see below), whose sum is σ = 6809540400. Its totient is φ = 6523667488.

The previous prime is 6666280157. The next prime is 6666280183. The reversal of 6666280163 is 3610826666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6666280163 - 2³⁰ = 5592538339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6666280183) 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 7 ways as a sum of consecutive naturals, for example, 141053 + ... + 182286.

It is an arithmetic number, because the mean of its divisors is an integer number (851192550).

Almost surely, 2^6666280163 is an apocalyptic number.

6666280163 is a deficient number, since it is larger than the sum of its proper divisors (143260237).

6666280163 is a wasteful number, since it uses less digits than its factorization.

6666280163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323781.

The product of its (nonzero) digits is 373248, while the sum is 44.

The square root of 6666280163 is about 81647.2912165492. The cubic root of 6666280163 is about 1882.0356856716.

The spelling of 6666280163 in words is "six billion, six hundred sixty-six million, two hundred eighty thousand, one hundred sixty-three".