166508260 has 24 divisors (see below), whose sum is σ = 353276280. Its totient is φ = 65915904.

The previous prime is 166508233. The next prime is 166508281. The reversal of 166508260 is 62805661.

It can be written as a sum of positive squares in 4 ways, for example, as 46656 + 166461604 = 216^2 + 12902^2 .

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, 40975 + ... + 44854.

It is an arithmetic number, because the mean of its divisors is an integer number (14719845).

Almost surely, 2^166508260 is an apocalyptic number.

166508260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166508260 is an abundant number, since it is smaller than the sum of its proper divisors (186768020).

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

166508260 is a wasteful number, since it uses less digits than its factorization.

166508260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85935 (or 85933 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 166508260 is about 12903.8079650931. The cubic root of 166508260 is about 550.1468037874.

The spelling of 166508260 in words is "one hundred sixty-six million, five hundred eight thousand, two hundred sixty".