164186992 has 20 divisors (see below), whose sum is σ = 318990496. Its totient is φ = 81866880.

The previous prime is 164186987. The next prime is 164186993. The reversal of 164186992 is 299681461.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164186993) by changing a digit.

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, 8109 + ... + 19852.

Almost surely, 2^164186992 is an apocalyptic number.

It is an amenable number.

164186992 is a deficient number, since it is larger than the sum of its proper divisors (154803504).

164186992 is a wasteful number, since it uses less digits than its factorization.

164186992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28336 (or 28330 counting only the distinct ones).

The product of its digits is 186624, while the sum is 46.

The square root of 164186992 is about 12813.5472059848. The cubic root of 164186992 is about 547.5783248035.

The spelling of 164186992 in words is "one hundred sixty-four million, one hundred eighty-six thousand, nine hundred ninety-two".