166066120 has 64 divisors (see below), whose sum is σ = 414590400. Its totient is φ = 59354880.

The previous prime is 166066063. The next prime is 166066123. The reversal of 166066120 is 21660661.

It is not an unprimeable number, because it can be changed into a prime (166066123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22762 + ... + 29158.

It is an arithmetic number, because the mean of its divisors is an integer number (6477975).

Almost surely, 2^166066120 is an apocalyptic number.

166066120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166066120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207295200).

166066120 is an abundant number, since it is smaller than the sum of its proper divisors (248524280).

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

166066120 is a wasteful number, since it uses less digits than its factorization.

166066120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6478 (or 6474 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 166066120 is about 12886.6644249006. The cubic root of 166066120 is about 549.6594255145.

The spelling of 166066120 in words is "one hundred sixty-six million, sixty-six thousand, one hundred twenty".