164223344771 has 2 divisors, whose sum is σ = 164223344772. Its totient is φ = 164223344770.

The previous prime is 164223344759. The next prime is 164223344827. The reversal of 164223344771 is 177443322461.

It is a weak prime.

It is an emirp because it is prime and its reverse (177443322461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164223344771 is a prime.

It is not a weakly prime, because it can be changed into another prime (164223304771) 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, 82111672385 + 82111672386.

It is an arithmetic number, because the mean of its divisors is an integer number (82111672386).

Almost surely, 2^164223344771 is an apocalyptic number.

164223344771 is a deficient number, since it is larger than the sum of its proper divisors (1).

164223344771 is an equidigital number, since it uses as much as digits as its factorization.

164223344771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 44.

The spelling of 164223344771 in words is "one hundred sixty-four billion, two hundred twenty-three million, three hundred forty-four thousand, seven hundred seventy-one".