166755140 has 24 divisors (see below), whose sum is σ = 352864512. Its totient is φ = 66191840.

The previous prime is 166755139. The next prime is 166755157. The reversal of 166755140 is 41557661.

166755140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 166755140.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29204 + ... + 34443.

It is an arithmetic number, because the mean of its divisors is an integer number (14702688).

Almost surely, 2^166755140 is an apocalyptic number.

166755140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166755140 is an abundant number, since it is smaller than the sum of its proper divisors (186109372).

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

166755140 is a wasteful number, since it uses less digits than its factorization.

166755140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63787 (or 63785 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 166755140 is about 12913.3705902061. The cubic root of 166755140 is about 550.4185684269.

The spelling of 166755140 in words is "one hundred sixty-six million, seven hundred fifty-five thousand, one hundred forty".