164626855 has 4 divisors (see below), whose sum is σ = 197552232. Its totient is φ = 131701480.

The previous prime is 164626831. The next prime is 164626867. The reversal of 164626855 is 558626461.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-164626855 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16462681 + ... + 16462690.

It is an arithmetic number, because the mean of its divisors is an integer number (49388058).

Almost surely, 2^164626855 is an apocalyptic number.

164626855 is a deficient number, since it is larger than the sum of its proper divisors (32925377).

164626855 is an equidigital number, since it uses as much as digits as its factorization.

164626855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32925376.

The product of its digits is 345600, while the sum is 43.

The square root of 164626855 is about 12830.6997081219. The cubic root of 164626855 is about 548.0668829426.

The spelling of 164626855 in words is "one hundred sixty-four million, six hundred twenty-six thousand, eight hundred fifty-five".