164891068 has 12 divisors (see below), whose sum is σ = 295270360. Its totient is φ = 80528112.

The previous prime is 164891033. The next prime is 164891093. The reversal of 164891068 is 860198461.

It is a Harshad number since it is a multiple of its sum of digits (43).

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, 479163 + ... + 479506.

Almost surely, 2^164891068 is an apocalyptic number.

It is an amenable number.

164891068 is a deficient number, since it is larger than the sum of its proper divisors (130379292).

164891068 is a wasteful number, since it uses less digits than its factorization.

164891068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958716 (or 958714 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 164891068 is about 12840.9917062507. The cubic root of 164891068 is about 548.3599274700.

The spelling of 164891068 in words is "one hundred sixty-four million, eight hundred ninety-one thousand, sixty-eight".