164285320 has 32 divisors (see below), whose sum is σ = 385715520. Its totient is φ = 62856640.

The previous prime is 164285299. The next prime is 164285321. The reversal of 164285320 is 23582461.

It is not an unprimeable number, because it can be changed into a prime (164285321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88366 + ... + 90205.

It is an arithmetic number, because the mean of its divisors is an integer number (12053610).

Almost surely, 2^164285320 is an apocalyptic number.

164285320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164285320 is an abundant number, since it is smaller than the sum of its proper divisors (221430200).

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

164285320 is a wasteful number, since it uses less digits than its factorization.

164285320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178605 (or 178601 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 164285320 is about 12817.3835083452. The cubic root of 164285320 is about 547.6876138853.

The spelling of 164285320 in words is "one hundred sixty-four million, two hundred eighty-five thousand, three hundred twenty".