3665326169 has 2 divisors, whose sum is σ = 3665326170. Its totient is φ = 3665326168.

The previous prime is 3665326129. The next prime is 3665326229. The reversal of 3665326169 is 9616235663.

3665326169 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3658798144 + 6528025 = 60488^2 + 2555^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3665326169 is a prime.

It is a super-2 number, since 2×3665326169² = 26869231850312433122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3665326129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832663084 + 1832663085.

It is an arithmetic number, because the mean of its divisors is an integer number (1832663085).

Almost surely, 2^3665326169 is an apocalyptic number.

It is an amenable number.

3665326169 is a deficient number, since it is larger than the sum of its proper divisors (1).

3665326169 is an equidigital number, since it uses as much as digits as its factorization.

3665326169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1049760, while the sum is 47.

The square root of 3665326169 is about 60541.9372749171. The cubic root of 3665326169 is about 1541.8337307819.

The spelling of 3665326169 in words is "three billion, six hundred sixty-five million, three hundred twenty-six thousand, one hundred sixty-nine".