164320655 has 8 divisors (see below), whose sum is σ = 198186912. Its totient is φ = 130788448.

The previous prime is 164320643. The next prime is 164320693. The reversal of 164320655 is 556023461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164320655 - 2⁸ = 164320399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82427 + ... + 84396.

It is an arithmetic number, because the mean of its divisors is an integer number (24773364).

Almost surely, 2^164320655 is an apocalyptic number.

164320655 is a deficient number, since it is larger than the sum of its proper divisors (33866257).

164320655 is a wasteful number, since it uses less digits than its factorization.

164320655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167025.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 164320655 is about 12818.7618356844. The cubic root of 164320655 is about 547.7268771916.

The spelling of 164320655 in words is "one hundred sixty-four million, three hundred twenty thousand, six hundred fifty-five".