9665166 has 16 divisors (see below), whose sum is σ = 22091904. Its totient is φ = 2761464.

The previous prime is 9665143. The next prime is 9665189. The reversal of 9665166 is 6615669.

It is an interprime number because it is at equal distance from previous prime (9665143) and next prime (9665189).

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 115020 + ... + 115103.

It is an arithmetic number, because the mean of its divisors is an integer number (1380744).

Almost surely, 2^9665166 is an apocalyptic number.

9665166 is an abundant number, since it is smaller than the sum of its proper divisors (12426738).

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

9665166 is a wasteful number, since it uses less digits than its factorization.

9665166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230135.

The product of its digits is 58320, while the sum is 39.

The square root of 9665166 is about 3108.8850091311. The cubic root of 9665166 is about 213.0115270713.

The spelling of 9665166 in words is "nine million, six hundred sixty-five thousand, one hundred sixty-six".