164781223063 has 2 divisors, whose sum is σ = 164781223064. Its totient is φ = 164781223062.

The previous prime is 164781223049. The next prime is 164781223099. The reversal of 164781223063 is 360322187461.

It is a weak prime.

It is an emirp because it is prime and its reverse (360322187461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164781223063 - 2¹⁷ = 164781091991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164781223003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82390611531 + 82390611532.

It is an arithmetic number, because the mean of its divisors is an integer number (82390611532).

Almost surely, 2^164781223063 is an apocalyptic number.

164781223063 is a deficient number, since it is larger than the sum of its proper divisors (1).

164781223063 is an equidigital number, since it uses as much as digits as its factorization.

164781223063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 164781223063 in words is "one hundred sixty-four billion, seven hundred eighty-one million, two hundred twenty-three thousand, sixty-three".