164550 has 24 divisors (see below), whose sum is σ = 408456. Its totient is φ = 43840.

The previous prime is 164531. The next prime is 164569. The reversal of 164550 is 55461.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (164531) and next prime (164569).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 399 + ... + 698.

It is an arithmetic number, because the mean of its divisors is an integer number (17019).

2¹⁶⁴⁵⁵⁰ is an apocalyptic number.

164550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164550 is an abundant number, since it is smaller than the sum of its proper divisors (243906).

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

164550 is a wasteful number, since it uses less digits than its factorization.

164550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112 (or 1107 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 164550 is about 405.6476303394. The cubic root of 164550 is about 54.7981582488.

The spelling of 164550 in words is "one hundred sixty-four thousand, five hundred fifty".