9285166566 has 216 divisors, whose sum is σ = 23339702880. Its totient is φ = 2767587264.

The previous prime is 9285166549. The next prime is 9285166567. The reversal of 9285166566 is 6656615829.

9285166566 is a `hidden beast` number, since 9 + 2 + 8 + 516 + 65 + 66 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (4665600) is a multiple of the sum of its prime divisors (150).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9285166567) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 117533715 + ... + 117533793.

It is an arithmetic number, because the mean of its divisors is an integer number (108054180).

Almost surely, 2^9285166566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9285166566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11669851440).

9285166566 is an abundant number, since it is smaller than the sum of its proper divisors (14054536314).

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

9285166566 is an equidigital number, since it uses as much as digits as its factorization.

9285166566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 150 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 54.

The square root of 9285166566 is about 96359.5691459857. The cubic root of 9285166566 is about 2101.8250623997.

The spelling of 9285166566 in words is "nine billion, two hundred eighty-five million, one hundred sixty-six thousand, five hundred sixty-six".