9955660073 has 2 divisors, whose sum is σ = 9955660074. Its totient is φ = 9955660072.

The previous prime is 9955660019. The next prime is 9955660163. The reversal of 9955660073 is 3700665599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7541706649 + 2413953424 = 86843^2 + 49132^2 .

It is a cyclic number.

It is not a de Polignac number, because 9955660073 - 2¹⁴ = 9955643689 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (9955660973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4977830036 + 4977830037.

It is an arithmetic number, because the mean of its divisors is an integer number (4977830037).

Almost surely, 2^9955660073 is an apocalyptic number.

It is an amenable number.

9955660073 is a deficient number, since it is larger than the sum of its proper divisors (1).

9955660073 is an equidigital number, since it uses as much as digits as its factorization.

9955660073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1530900, while the sum is 50.

The square root of 9955660073 is about 99778.0540650097. The cubic root of 9955660073 is about 2151.2457228623.

The spelling of 9955660073 in words is "nine billion, nine hundred fifty-five million, six hundred sixty thousand, seventy-three".