9665669701 has 2 divisors, whose sum is σ = 9665669702. Its totient is φ = 9665669700.

The previous prime is 9665669669. The next prime is 9665669723. The reversal of 9665669701 is 1079665669.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9491825476 + 173844225 = 97426^2 + 13185^2 .

It is a cyclic number.

It is not a de Polignac number, because 9665669701 - 2⁵ = 9665669669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9665669771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4832834850 + 4832834851.

It is an arithmetic number, because the mean of its divisors is an integer number (4832834851).

Almost surely, 2^9665669701 is an apocalyptic number.

It is an amenable number.

9665669701 is a deficient number, since it is larger than the sum of its proper divisors (1).

9665669701 is an equidigital number, since it uses as much as digits as its factorization.

9665669701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3674160, while the sum is 55.

The square root of 9665669701 is about 98314.1378490398. The cubic root of 9665669701 is about 2130.1522737868.

The spelling of 9665669701 in words is "nine billion, six hundred sixty-five million, six hundred sixty-nine thousand, seven hundred one".