164165216 has 12 divisors (see below), whose sum is σ = 323200332. Its totient is φ = 82082592.

The previous prime is 164165207. The next prime is 164165231. The reversal of 164165216 is 612561461.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 5130163 = 164165216 / (1 + 6 + 4 + 1 + 6 + 5 + 2 + 1 + 6).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2565050 + ... + 2565113.

It is an arithmetic number, because the mean of its divisors is an integer number (26933361).

Almost surely, 2^164165216 is an apocalyptic number.

164165216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

164165216 is a deficient number, since it is larger than the sum of its proper divisors (159035116).

164165216 is an equidigital number, since it uses as much as digits as its factorization.

164165216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5130173 (or 5130165 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 164165216 is about 12812.6974521371. The cubic root of 164165216 is about 547.5541154297.

The spelling of 164165216 in words is "one hundred sixty-four million, one hundred sixty-five thousand, two hundred sixteen".