164243611 has 16 divisors (see below), whose sum is σ = 194273280. Its totient is φ = 135879840.

The previous prime is 164243591. The next prime is 164243623. The reversal of 164243611 is 116342461.

It is a cyclic number.

It is not a de Polignac number, because 164243611 - 2¹⁹ = 163719323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164243611.

It is not an unprimeable number, because it can be changed into a prime (164243311) 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 15 ways as a sum of consecutive naturals, for example, 109710 + ... + 111196.

It is an arithmetic number, because the mean of its divisors is an integer number (12142080).

Almost surely, 2^164243611 is an apocalyptic number.

164243611 is a deficient number, since it is larger than the sum of its proper divisors (30029669).

164243611 is a wasteful number, since it uses less digits than its factorization.

164243611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034.

The product of its digits is 3456, while the sum is 28.

The square root of 164243611 is about 12815.7563569225. The cubic root of 164243611 is about 547.6412607152.

The spelling of 164243611 in words is "one hundred sixty-four million, two hundred forty-three thousand, six hundred eleven".