166712 has 32 divisors (see below), whose sum is σ = 386400. Its totient is φ = 65664.

The previous prime is 166703. The next prime is 166723. The reversal of 166712 is 217661.

It is a congruent number.

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, 614 + ... + 842.

It is an arithmetic number, because the mean of its divisors is an integer number (12075).

2¹⁶⁶⁷¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193200).

166712 is an abundant number, since it is smaller than the sum of its proper divisors (219688).

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

166712 is a wasteful number, since it uses less digits than its factorization.

166712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 251 counting only the distinct ones).

The product of its digits is 504, while the sum is 23.

The square root of 166712 is about 408.3038084564. The cubic root of 166712 is about 55.0371099415.

It can be divided in two parts, 166 and 712, that added together give a palindrome (878).

The spelling of 166712 in words is "one hundred sixty-six thousand, seven hundred twelve".