999960163 has 2 divisors, whose sum is σ = 999960164. Its totient is φ = 999960162.

The previous prime is 999960151. The next prime is 999960229. The reversal of 999960163 is 361069999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999960163 - 2⁵ = 999960131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 999960163.

It is not a weakly prime, because it can be changed into another prime (999960103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499980081 + 499980082.

It is an arithmetic number, because the mean of its divisors is an integer number (499980082).

Almost surely, 2^999960163 is an apocalyptic number.

999960163 is a deficient number, since it is larger than the sum of its proper divisors (1).

999960163 is an equidigital number, since it uses as much as digits as its factorization.

999960163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 708588, while the sum is 52.

The square root of 999960163 is about 31622.1467171348. The cubic root of 999960163 is about 999.9867208237.

The spelling of 999960163 in words is "nine hundred ninety-nine million, nine hundred sixty thousand, one hundred sixty-three".