164043124109 has 2 divisors, whose sum is σ = 164043124110. Its totient is φ = 164043124108.

The previous prime is 164043124099. The next prime is 164043124151. The reversal of 164043124109 is 901421340461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158401612009 + 5641512100 = 397997^2 + 75110^2 .

It is a cyclic number.

It is not a de Polignac number, because 164043124109 - 2¹⁶ = 164043058573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164043124199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82021562054 + 82021562055.

It is an arithmetic number, because the mean of its divisors is an integer number (82021562055).

Almost surely, 2^164043124109 is an apocalyptic number.

It is an amenable number.

164043124109 is a deficient number, since it is larger than the sum of its proper divisors (1).

164043124109 is an equidigital number, since it uses as much as digits as its factorization.

164043124109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 164043124109 in words is "one hundred sixty-four billion, forty-three million, one hundred twenty-four thousand, one hundred nine".