166966 has 8 divisors (see below), whose sum is σ = 258624. Its totient is φ = 80760.
The previous prime is 166949. The next prime is 166967. The reversal of 166966 is 669661.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (166967) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1285 + ... + 1408.
It is an arithmetic number, because the mean of its divisors is an integer number (32328).
2166966 is an apocalyptic number.
166966 is a deficient number, since it is larger than the sum of its proper divisors (91658).
166966 is a wasteful number, since it uses less digits than its factorization.
166966 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2726.
The product of its digits is 11664, while the sum is 34.
The square root of 166966 is about 408.6147329698. The cubic root of 166966 is about 55.0650470073.
The spelling of 166966 in words is "one hundred sixty-six thousand, nine hundred sixty-six".
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