666000163 has 8 divisors (see below), whose sum is σ = 673920000. Its totient is φ = 658108488.

The previous prime is 666000133. The next prime is 666000169. The reversal of 666000163 is 361000666.

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 666000163 - 2⁵ = 666000131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (666000169) 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, 42588 + ... + 56086.

It is an arithmetic number, because the mean of its divisors is an integer number (84240000).

Almost surely, 2^666000163 is an apocalyptic number.

666000163 is a deficient number, since it is larger than the sum of its proper divisors (7919837).

666000163 is a wasteful number, since it uses less digits than its factorization.

666000163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14081.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 666000163 is about 25806.9789591885. The cubic root of 666000163 is about 873.2892453739.

The spelling of 666000163 in words is "six hundred sixty-six million, one hundred sixty-three", and thus it is an aban number.