164021116 has 12 divisors (see below), whose sum is σ = 328042288. Its totient is φ = 70294752.

The previous prime is 164021069. The next prime is 164021149. The reversal of 164021116 is 611120461.

164021116 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2928921 + ... + 2928976.

Almost surely, 2^164021116 is an apocalyptic number.

It is an amenable number.

164021116 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

164021116 is a wasteful number, since it uses less digits than its factorization.

164021116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5857908 (or 5857906 counting only the distinct ones).

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

The square root of 164021116 is about 12807.0728896185. The cubic root of 164021116 is about 547.3938588958.

Adding to 164021116 its reverse (611120461), we get a palindrome (775141577).

The spelling of 164021116 in words is "one hundred sixty-four million, twenty-one thousand, one hundred sixteen".