164110621 has 12 divisors (see below), whose sum is σ = 171408000. Its totient is φ = 156959640.

The previous prime is 164110613. The next prime is 164110627. The reversal of 164110621 is 126011461.

It is not a de Polignac number, because 164110621 - 2³ = 164110613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164110592 and 164110601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164110627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 328630 + ... + 329128.

It is an arithmetic number, because the mean of its divisors is an integer number (14284000).

Almost surely, 2^164110621 is an apocalyptic number.

It is an amenable number.

164110621 is a deficient number, since it is larger than the sum of its proper divisors (7297379).

164110621 is an equidigital number, since it uses as much as digits as its factorization.

164110621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 164110621 is about 12810.5667712244. The cubic root of 164110621 is about 547.4934102610.

The spelling of 164110621 in words is "one hundred sixty-four million, one hundred ten thousand, six hundred twenty-one".