3665260369 has 2 divisors, whose sum is σ = 3665260370. Its totient is φ = 3665260368.

The previous prime is 3665260351. The next prime is 3665260409. The reversal of 3665260369 is 9630625663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1902268225 + 1762992144 = 43615^2 + 41988^2 .

It is a cyclic number.

It is not a de Polignac number, because 3665260369 - 2¹¹ = 3665258321 is a prime.

It is a super-2 number, since 2×3665260369² = 26868267145124032322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3665260349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832630184 + 1832630185.

It is an arithmetic number, because the mean of its divisors is an integer number (1832630185).

Almost surely, 2^3665260369 is an apocalyptic number.

It is an amenable number.

3665260369 is a deficient number, since it is larger than the sum of its proper divisors (1).

3665260369 is an equidigital number, since it uses as much as digits as its factorization.

3665260369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1049760, while the sum is 46.

The square root of 3665260369 is about 60541.3938475156. The cubic root of 3665260369 is about 1541.8245043846.

The spelling of 3665260369 in words is "three billion, six hundred sixty-five million, two hundred sixty thousand, three hundred sixty-nine".