9996206081 has 2 divisors, whose sum is σ = 9996206082. Its totient is φ = 9996206080.

The previous prime is 9996206063. The next prime is 9996206083. The reversal of 9996206081 is 1806026999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9759661681 + 236544400 = 98791^2 + 15380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9996206081 is a prime.

It is a super-2 number, since 2×9996206081² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 9996206083, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (9996206083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4998103040 + 4998103041.

It is an arithmetic number, because the mean of its divisors is an integer number (4998103041).

It is a Proth number, since it is equal to 76265 ⋅ 2¹⁷ + 1 and 76265 < 2¹⁷.

Almost surely, 2^9996206081 is an apocalyptic number.

It is an amenable number.

9996206081 is a deficient number, since it is larger than the sum of its proper divisors (1).

9996206081 is an equidigital number, since it uses as much as digits as its factorization.

9996206081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 9996206081 is about 99981.0286054309. The cubic root of 9996206081 is about 2154.1621972116.

The spelling of 9996206081 in words is "nine billion, nine hundred ninety-six million, two hundred six thousand, eighty-one".