232168169209 has 2 divisors, whose sum is σ = 232168169210. Its totient is φ = 232168169208.

The previous prime is 232168169203. The next prime is 232168169237. The reversal of 232168169209 is 902961861232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221414479209 + 10753690000 = 470547^2 + 103700^2 .

It is a cyclic number.

It is not a de Polignac number, because 232168169209 - 2¹⁹ = 232167644921 is a prime.

It is not a weakly prime, because it can be changed into another prime (232168169203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116084084604 + 116084084605.

It is an arithmetic number, because the mean of its divisors is an integer number (116084084605).

Almost surely, 2^232168169209 is an apocalyptic number.

It is an amenable number.

232168169209 is a deficient number, since it is larger than the sum of its proper divisors (1).

232168169209 is an equidigital number, since it uses as much as digits as its factorization.

232168169209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 232168169209 in words is "two hundred thirty-two billion, one hundred sixty-eight million, one hundred sixty-nine thousand, two hundred nine".