164321656 has 16 divisors (see below), whose sum is σ = 318727800. Its totient is φ = 79327584.

The previous prime is 164321623. The next prime is 164321687. The reversal of 164321656 is 656123461.

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, 353910 + ... + 354373.

Almost surely, 2^164321656 is an apocalyptic number.

It is an amenable number.

164321656 is a deficient number, since it is larger than the sum of its proper divisors (154406144).

164321656 is a wasteful number, since it uses less digits than its factorization.

164321656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708318 (or 708314 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 164321656 is about 12818.8008799575. The cubic root of 164321656 is about 547.7279893940.

The spelling of 164321656 in words is "one hundred sixty-four million, three hundred twenty-one thousand, six hundred fifty-six".