304408666169 has 2 divisors, whose sum is σ = 304408666170. Its totient is φ = 304408666168.

The previous prime is 304408666141. The next prime is 304408666171. The reversal of 304408666169 is 961666804403.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304152250000 + 256416169 = 551500^2 + 16013^2 .

It is a cyclic number.

It is not a de Polignac number, because 304408666169 - 2³⁶ = 235689189433 is a prime.

It is a super-2 number, since 2×304408666169² (a number of 24 digits) contains 22 as substring.

Together with 304408666171, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 304408666169.

It is not a weakly prime, because it can be changed into another prime (304408666069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152204333084 + 152204333085.

It is an arithmetic number, because the mean of its divisors is an integer number (152204333085).

Almost surely, 2^304408666169 is an apocalyptic number.

It is an amenable number.

304408666169 is a deficient number, since it is larger than the sum of its proper divisors (1).

304408666169 is an equidigital number, since it uses as much as digits as its factorization.

304408666169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4478976, while the sum is 53.

The spelling of 304408666169 in words is "three hundred four billion, four hundred eight million, six hundred sixty-six thousand, one hundred sixty-nine".