9112812666 has 16 divisors (see below), whose sum is σ = 18244484544. Its totient is φ = 3034461024.

The previous prime is 9112812649. The next prime is 9112812671. The reversal of 9112812666 is 6662182119.

It is a super-2 number, since 2×9112812666² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 779515 + ... + 791118.

It is an arithmetic number, because the mean of its divisors is an integer number (1140280284).

Almost surely, 2^9112812666 is an apocalyptic number.

9112812666 is an abundant number, since it is smaller than the sum of its proper divisors (9131671878).

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

9112812666 is a wasteful number, since it uses less digits than its factorization.

9112812666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571605.

The product of its digits is 62208, while the sum is 42.

The square root of 9112812666 is about 95461.0531368683. The cubic root of 9112812666 is about 2088.7388640215.

The spelling of 9112812666 in words is "nine billion, one hundred twelve million, eight hundred twelve thousand, six hundred sixty-six".