9998151659 has 2 divisors, whose sum is σ = 9998151660. Its totient is φ = 9998151658.

The previous prime is 9998151649. The next prime is 9998151721. The reversal of 9998151659 is 9561518999.

It is an a-pointer prime, because the next prime (9998151721) can be obtained adding 9998151659 to its sum of digits (62).

It is a weak prime.

It is an emirp because it is prime and its reverse (9561518999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9998151659 - 2⁴ = 9998151643 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (9998151629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999075829 + 4999075830.

It is an arithmetic number, because the mean of its divisors is an integer number (4999075830).

Almost surely, 2^9998151659 is an apocalyptic number.

9998151659 is a deficient number, since it is larger than the sum of its proper divisors (1).

9998151659 is an equidigital number, since it uses as much as digits as its factorization.

9998151659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7873200, while the sum is 62.

The square root of 9998151659 is about 99990.7578679150. The cubic root of 9998151659 is about 2154.3019441872.

The spelling of 9998151659 in words is "nine billion, nine hundred ninety-eight million, one hundred fifty-one thousand, six hundred fifty-nine".