164719892027 has 2 divisors, whose sum is σ = 164719892028. Its totient is φ = 164719892026.

The previous prime is 164719892011. The next prime is 164719892047. The reversal of 164719892027 is 720298917461.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (720298917461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164719892027 - 2⁴ = 164719892011 is a prime.

It is not a weakly prime, because it can be changed into another prime (164719892047) 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, 82359946013 + 82359946014.

It is an arithmetic number, because the mean of its divisors is an integer number (82359946014).

Almost surely, 2^164719892027 is an apocalyptic number.

164719892027 is a deficient number, since it is larger than the sum of its proper divisors (1).

164719892027 is an equidigital number, since it uses as much as digits as its factorization.

164719892027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3048192, while the sum is 56.

The spelling of 164719892027 in words is "one hundred sixty-four billion, seven hundred nineteen million, eight hundred ninety-two thousand, twenty-seven".