164420012 has 12 divisors (see below), whose sum is σ = 291202296. Its totient is φ = 81219360.

The previous prime is 164419999. The next prime is 164420023. The reversal of 164420012 is 210024461.

It is a super-3 number, since 3×164420012³ (a number of 26 digits) contains 333 as substring.

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, 247289 + ... + 247952.

It is an arithmetic number, because the mean of its divisors is an integer number (24266858).

Almost surely, 2^164420012 is an apocalyptic number.

It is an amenable number.

164420012 is a deficient number, since it is larger than the sum of its proper divisors (126782284).

164420012 is a wasteful number, since it uses less digits than its factorization.

164420012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495328 (or 495326 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 164420012 is about 12822.6367023323. The cubic root of 164420012 is about 547.8372498742.

Adding to 164420012 its reverse (210024461), we get a palindrome (374444473).

The spelling of 164420012 in words is "one hundred sixty-four million, four hundred twenty thousand, twelve".