204010240169 has 2 divisors, whose sum is σ = 204010240170. Its totient is φ = 204010240168.

The previous prime is 204010240153. The next prime is 204010240211. The reversal of 204010240169 is 961042010402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137649904144 + 66360336025 = 371012^2 + 257605^2 .

It is a cyclic number.

It is not a de Polignac number, because 204010240169 - 2⁴ = 204010240153 is a prime.

It is a super-2 number, since 2×204010240169² (a number of 23 digits) contains 22 as substring.

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 (204010240669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102005120084 + 102005120085.

It is an arithmetic number, because the mean of its divisors is an integer number (102005120085).

Almost surely, 2^204010240169 is an apocalyptic number.

It is an amenable number.

204010240169 is a deficient number, since it is larger than the sum of its proper divisors (1).

204010240169 is an equidigital number, since it uses as much as digits as its factorization.

204010240169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 204010240169 in words is "two hundred four billion, ten million, two hundred forty thousand, one hundred sixty-nine".