9006665786 has 16 divisors (see below), whose sum is σ = 14034647040. Its totient is φ = 4330301040.

The previous prime is 9006665753. The next prime is 9006665861. The reversal of 9006665786 is 6875666009.

It is a super-2 number, since 2×9006665786² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452906 + ... + 472373.

It is an arithmetic number, because the mean of its divisors is an integer number (877165440).

Almost surely, 2^9006665786 is an apocalyptic number.

9006665786 is a deficient number, since it is larger than the sum of its proper divisors (5027981254).

9006665786 is a wasteful number, since it uses less digits than its factorization.

9006665786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925469.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The square root of 9006665786 is about 94903.4550793595. The cubic root of 9006665786 is about 2080.5972294198.

The spelling of 9006665786 in words is "nine billion, six million, six hundred sixty-five thousand, seven hundred eighty-six".