9910332666 has 192 divisors, whose sum is σ = 24618816768. Its totient is φ = 2969561088.

The previous prime is 9910332659. The next prime is 9910332689. The reversal of 9910332666 is 6662330199.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 63123060 + ... + 63123216.

It is an arithmetic number, because the mean of its divisors is an integer number (128223004).

Almost surely, 2^9910332666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9910332666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12309408384).

9910332666 is an abundant number, since it is smaller than the sum of its proper divisors (14708484102).

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

9910332666 is a wasteful number, since it uses less digits than its factorization.

9910332666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The square root of 9910332666 is about 99550.6537698271. The cubic root of 9910332666 is about 2147.9759329097.

It can be divided in two parts, 99103 and 32666, that added together give a square (131769 = 363²).

The spelling of 9910332666 in words is "nine billion, nine hundred ten million, three hundred thirty-two thousand, six hundred sixty-six".