3668164309 has 2 divisors, whose sum is σ = 3668164310. Its totient is φ = 3668164308.

The previous prime is 3668164271. The next prime is 3668164351. The reversal of 3668164309 is 9034618663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3014339409 + 653824900 = 54903^2 + 25570^2 .

It is a cyclic number.

It is not a de Polignac number, because 3668164309 - 2¹⁹ = 3667640021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3668164399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1834082154 + 1834082155.

It is an arithmetic number, because the mean of its divisors is an integer number (1834082155).

Almost surely, 2^3668164309 is an apocalyptic number.

It is an amenable number.

3668164309 is a deficient number, since it is larger than the sum of its proper divisors (1).

3668164309 is an equidigital number, since it uses as much as digits as its factorization.

3668164309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 46.

The square root of 3668164309 is about 60565.3721940186. The cubic root of 3668164309 is about 1542.2315863258.

The spelling of 3668164309 in words is "three billion, six hundred sixty-eight million, one hundred sixty-four thousand, three hundred nine".