166576 has 20 divisors (see below), whose sum is σ = 334800. Its totient is φ = 80192.

The previous prime is 166571. The next prime is 166597. The reversal of 166576 is 675661.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (166571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285 + ... + 643.

It is an arithmetic number, because the mean of its divisors is an integer number (16740).

2¹⁶⁶⁵⁷⁶ is an apocalyptic number.

166576 is a gapful number since it is divisible by the number (16) 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 166576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167400).

166576 is an abundant number, since it is smaller than the sum of its proper divisors (168224).

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

166576 is a wasteful number, since it uses less digits than its factorization.

166576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396 (or 390 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 166576 is about 408.1372318228. The cubic root of 166576 is about 55.0221398469.

The spelling of 166576 in words is "one hundred sixty-six thousand, five hundred seventy-six".