164043123473 has 2 divisors, whose sum is σ = 164043123474. Its totient is φ = 164043123472.

The previous prime is 164043123443. The next prime is 164043123479. The reversal of 164043123473 is 374321340461.

164043123473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160598959504 + 3444163969 = 400748^2 + 58687^2 .

It is a cyclic number.

It is not a de Polignac number, because 164043123473 - 2¹⁴ = 164043107089 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (164043123479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82021561736 + 82021561737.

It is an arithmetic number, because the mean of its divisors is an integer number (82021561737).

Almost surely, 2^164043123473 is an apocalyptic number.

It is an amenable number.

164043123473 is a deficient number, since it is larger than the sum of its proper divisors (1).

164043123473 is an equidigital number, since it uses as much as digits as its factorization.

164043123473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 38.

The spelling of 164043123473 in words is "one hundred sixty-four billion, forty-three million, one hundred twenty-three thousand, four hundred seventy-three".