998500316599 has 2 divisors, whose sum is σ = 998500316600. Its totient is φ = 998500316598.

The previous prime is 998500316587. The next prime is 998500316621. The reversal of 998500316599 is 995613005899.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 998500316599 - 2²¹ = 998498219447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 998500316599.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998500316899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499250158299 + 499250158300.

It is an arithmetic number, because the mean of its divisors is an integer number (499250158300).

Almost surely, 2^998500316599 is an apocalyptic number.

998500316599 is a deficient number, since it is larger than the sum of its proper divisors (1).

998500316599 is an equidigital number, since it uses as much as digits as its factorization.

998500316599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23619600, while the sum is 64.

The spelling of 998500316599 in words is "nine hundred ninety-eight billion, five hundred million, three hundred sixteen thousand, five hundred ninety-nine".