998041716611 has 2 divisors, whose sum is σ = 998041716612. Its totient is φ = 998041716610.

The previous prime is 998041716593. The next prime is 998041716631. The reversal of 998041716611 is 116617140899.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 998041716611 - 2⁶ = 998041716547 is a prime.

It is not a weakly prime, because it can be changed into another prime (998041716631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499020858305 + 499020858306.

It is an arithmetic number, because the mean of its divisors is an integer number (499020858306).

Almost surely, 2^998041716611 is an apocalyptic number.

998041716611 is a deficient number, since it is larger than the sum of its proper divisors (1).

998041716611 is an equidigital number, since it uses as much as digits as its factorization.

998041716611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 53.

The spelling of 998041716611 in words is "nine hundred ninety-eight billion, forty-one million, seven hundred sixteen thousand, six hundred eleven".