164606684227 has 4 divisors (see below), whose sum is σ = 174289430376. Its totient is φ = 154923938080.

The previous prime is 164606684087. The next prime is 164606684233. The reversal of 164606684227 is 722486606461.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164606684227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164606684287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4841373049 + ... + 4841373082.

It is an arithmetic number, because the mean of its divisors is an integer number (43572357594).

Almost surely, 2^164606684227 is an apocalyptic number.

164606684227 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

164606684227 is a deficient number, since it is larger than the sum of its proper divisors (9682746149).

164606684227 is an equidigital number, since it uses as much as digits as its factorization.

164606684227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9682746148.

The product of its (nonzero) digits is 4644864, while the sum is 52.

The spelling of 164606684227 in words is "one hundred sixty-four billion, six hundred six million, six hundred eighty-four thousand, two hundred twenty-seven".