164966 has 4 divisors (see below), whose sum is σ = 247452. Its totient is φ = 82482.

The previous prime is 164963. The next prime is 164987. The reversal of 164966 is 669461.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164963) 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 as a sum of consecutive naturals, namely, 41240 + ... + 41243.

It is an arithmetic number, because the mean of its divisors is an integer number (61863).

2¹⁶⁴⁹⁶⁶ is an apocalyptic number.

164966 is a deficient number, since it is larger than the sum of its proper divisors (82486).

164966 is an equidigital number, since it uses as much as digits as its factorization.

164966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82485.

The product of its digits is 7776, while the sum is 32.

The square root of 164966 is about 406.1600669687. The cubic root of 164966 is about 54.8442979237.

The spelling of 164966 in words is "one hundred sixty-four thousand, nine hundred sixty-six".