164223344899 has 2 divisors, whose sum is σ = 164223344900. Its totient is φ = 164223344898.

The previous prime is 164223344863. The next prime is 164223344977. The reversal of 164223344899 is 998443322461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164223344899 - 2⁷ = 164223344771 is a prime.

It is not a weakly prime, because it can be changed into another prime (164223341899) 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 as a sum of consecutive naturals, namely, 82111672449 + 82111672450.

It is an arithmetic number, because the mean of its divisors is an integer number (82111672450).

Almost surely, 2^164223344899 is an apocalyptic number.

164223344899 is a deficient number, since it is larger than the sum of its proper divisors (1).

164223344899 is an equidigital number, since it uses as much as digits as its factorization.

164223344899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8957952, while the sum is 55.

The spelling of 164223344899 in words is "one hundred sixty-four billion, two hundred twenty-three million, three hundred forty-four thousand, eight hundred ninety-nine".