164213816 has 16 divisors (see below), whose sum is σ = 331585800. Its totient is φ = 75790944.

The previous prime is 164213809. The next prime is 164213831. The reversal of 164213816 is 618312461.

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 in 3 ways as a sum of consecutive naturals, for example, 789386 + ... + 789593.

Almost surely, 2^164213816 is an apocalyptic number.

It is an amenable number.

164213816 is an abundant number, since it is smaller than the sum of its proper divisors (167371984).

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

164213816 is a wasteful number, since it uses less digits than its factorization.

164213816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578998 (or 1578994 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 164213816 is about 12814.5938679304. The cubic root of 164213816 is about 547.6081433273.

The spelling of 164213816 in words is "one hundred sixty-four million, two hundred thirteen thousand, eight hundred sixteen".