164336220 has 36 divisors (see below), whose sum is σ = 498487080. Its totient is φ = 43822944.

The previous prime is 164336189. The next prime is 164336233. The reversal of 164336220 is 22633461.

164336220 is a `hidden beast` number, since 1 + 6 + 4 + 33 + 622 + 0 = 666.

164336220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 456310 + ... + 456669.

Almost surely, 2^164336220 is an apocalyptic number.

164336220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164336220 is an abundant number, since it is smaller than the sum of its proper divisors (334150860).

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

164336220 is a wasteful number, since it uses less digits than its factorization.

164336220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912994 (or 912989 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 164336220 is about 12819.3689392263. The cubic root of 164336220 is about 547.7441708172.

Adding to 164336220 its reverse (22633461), we get a palindrome (186969681).

The spelling of 164336220 in words is "one hundred sixty-four million, three hundred thirty-six thousand, two hundred twenty".