9066646890 has 144 divisors (see below), whose sum is σ = 29035278792. Its totient is φ = 1950455808.

The previous prime is 9066646861. The next prime is 9066646921. The reversal of 9066646890 is 986466609.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9021770289 + 44876601 = 94983^2 + 6699^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 14502 + ... + 135438.

Almost surely, 2^9066646890 is an apocalyptic number.

9066646890 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9066646890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14517639396).

9066646890 is an abundant number, since it is smaller than the sum of its proper divisors (19968631902).

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

9066646890 is a wasteful number, since it uses less digits than its factorization.

9066646890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120981 (or 120971 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The square root of 9066646890 is about 95218.9418655763. The cubic root of 9066646890 is about 2085.2056867972.

The spelling of 9066646890 in words is "nine billion, sixty-six million, six hundred forty-six thousand, eight hundred ninety".