164704349221 has 8 divisors (see below), whose sum is σ = 173491858400. Its totient is φ = 155928726000.

The previous prime is 164704349219. The next prime is 164704349281. The reversal of 164704349221 is 122943407461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164704349221 - 2¹ = 164704349219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164704349281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2943030 + ... + 2998471.

It is an arithmetic number, because the mean of its divisors is an integer number (21686482300).

Almost surely, 2^164704349221 is an apocalyptic number.

It is an amenable number.

164704349221 is a deficient number, since it is larger than the sum of its proper divisors (8787509179).

164704349221 is a wasteful number, since it uses less digits than its factorization.

164704349221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5942979.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 164704349221 in words is "one hundred sixty-four billion, seven hundred four million, three hundred forty-nine thousand, two hundred twenty-one".