169966 has 8 divisors (see below), whose sum is σ = 270000. Its totient is φ = 79968.

The previous prime is 169957. The next prime is 169987. The reversal of 169966 is 669961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2466 + ... + 2533.

It is an arithmetic number, because the mean of its divisors is an integer number (33750).

2¹⁶⁹⁹⁶⁶ is an apocalyptic number.

169966 is a deficient number, since it is larger than the sum of its proper divisors (100034).

169966 is a wasteful number, since it uses less digits than its factorization.

169966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5018.

The product of its digits is 17496, while the sum is 37.

The square root of 169966 is about 412.2693294438. The cubic root of 169966 is about 55.3928892158.

The spelling of 169966 in words is "one hundred sixty-nine thousand, nine hundred sixty-six".