9665551112 has 32 divisors (see below), whose sum is σ = 20735457600. Its totient is φ = 4137666624.

The previous prime is 9665551111. The next prime is 9665551151. The reversal of 9665551112 is 2111555669.

It is a self number, because there is not a number n which added to its sum of digits gives 9665551112.

It is not an unprimeable number, because it can be changed into a prime (9665551111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48287 + ... + 147182.

It is an arithmetic number, because the mean of its divisors is an integer number (647983050).

Almost surely, 2^9665551112 is an apocalyptic number.

It is an amenable number.

9665551112 is an abundant number, since it is smaller than the sum of its proper divisors (11069906488).

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

9665551112 is a wasteful number, since it uses less digits than its factorization.

9665551112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196365 (or 196361 counting only the distinct ones).

The product of its digits is 81000, while the sum is 41.

The square root of 9665551112 is about 98313.5347345420. The cubic root of 9665551112 is about 2130.1435620724.

The spelling of 9665551112 in words is "nine billion, six hundred sixty-five million, five hundred fifty-one thousand, one hundred twelve".