3668545663 has 2 divisors, whose sum is σ = 3668545664. Its totient is φ = 3668545662.

The previous prime is 3668545637. The next prime is 3668545667. The reversal of 3668545663 is 3665458663.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3668545663 - 2¹⁷ = 3668414591 is a prime.

It is a super-2 number, since 2×3668545663² = 26916454563032219138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3668545663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3668545667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1834272831 + 1834272832.

It is an arithmetic number, because the mean of its divisors is an integer number (1834272832).

Almost surely, 2^3668545663 is an apocalyptic number.

3668545663 is a deficient number, since it is larger than the sum of its proper divisors (1).

3668545663 is an equidigital number, since it uses as much as digits as its factorization.

3668545663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9331200, while the sum is 52.

The square root of 3668545663 is about 60568.5203963247. The cubic root of 3668545663 is about 1542.2850295701.

The spelling of 3668545663 in words is "three billion, six hundred sixty-eight million, five hundred forty-five thousand, six hundred sixty-three".