9661065066 has 48 divisors (see below), whose sum is σ = 21052272384. Its totient is φ = 3201939072.

The previous prime is 9661065047. The next prime is 9661065083. The reversal of 9661065066 is 6605601669.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5298631 + ... + 5300453.

It is an arithmetic number, because the mean of its divisors is an integer number (438589008).

Almost surely, 2^9661065066 is an apocalyptic number.

9661065066 is an abundant number, since it is smaller than the sum of its proper divisors (11391207318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9661065066 is a wasteful number, since it uses less digits than its factorization.

9661065066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355 (or 3352 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 9661065066 is about 98290.7170896621. The cubic root of 9661065066 is about 2129.8139584914.

The spelling of 9661065066 in words is "nine billion, six hundred sixty-one million, sixty-five thousand, sixty-six".