164685882 has 16 divisors (see below), whose sum is σ = 346707360. Its totient is φ = 52006032.

The previous prime is 164685839. The next prime is 164685923. The reversal of 164685882 is 288586461.

It is a happy number.

164685882 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 722193 + ... + 722420.

It is an arithmetic number, because the mean of its divisors is an integer number (21669210).

Almost surely, 2^164685882 is an apocalyptic number.

164685882 is an abundant number, since it is smaller than the sum of its proper divisors (182021478).

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

164685882 is a wasteful number, since it uses less digits than its factorization.

164685882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444637.

The product of its digits is 737280, while the sum is 48.

The square root of 164685882 is about 12832.9997272656. Note that the first 3 decimals coincide. The cubic root of 164685882 is about 548.1323782880.

The spelling of 164685882 in words is "one hundred sixty-four million, six hundred eighty-five thousand, eight hundred eighty-two".