99916792861 has 2 divisors, whose sum is σ = 99916792862. Its totient is φ = 99916792860.

The previous prime is 99916792837. The next prime is 99916792891. The reversal of 99916792861 is 16829761999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86621319225 + 13295473636 = 294315^2 + 115306^2 .

It is a cyclic number.

It is not a de Polignac number, because 99916792861 - 2²¹ = 99914695709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99916792831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49958396430 + 49958396431.

It is an arithmetic number, because the mean of its divisors is an integer number (49958396431).

Almost surely, 2^99916792861 is an apocalyptic number.

It is an amenable number.

99916792861 is a deficient number, since it is larger than the sum of its proper divisors (1).

99916792861 is an equidigital number, since it uses as much as digits as its factorization.

99916792861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26453952, while the sum is 67.

The spelling of 99916792861 in words is "ninety-nine billion, nine hundred sixteen million, seven hundred ninety-two thousand, eight hundred sixty-one".