999999000667 has 2 divisors, whose sum is σ = 999999000668. Its totient is φ = 999999000666.

The previous prime is 999999000599. The next prime is 999999000709. The reversal of 999999000667 is 766000999999.

999999000667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999999000667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 999999000667.

It is not a weakly prime, because it can be changed into another prime (999999000067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499999500333 + 499999500334.

It is an arithmetic number, because the mean of its divisors is an integer number (499999500334).

Almost surely, 2^999999000667 is an apocalyptic number.

999999000667 is a deficient number, since it is larger than the sum of its proper divisors (1).

999999000667 is an equidigital number, since it uses as much as digits as its factorization.

999999000667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 133923132, while the sum is 73.

The spelling of 999999000667 in words is "nine hundred ninety-nine billion, nine hundred ninety-nine million, six hundred sixty-seven", and thus it is an aban number.