3663323641 has 2 divisors, whose sum is σ = 3663323642. Its totient is φ = 3663323640.

The previous prime is 3663323621. The next prime is 3663323687. The reversal of 3663323641 is 1463233663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3591005625 + 72318016 = 59925^2 + 8504^2 .

It is an emirp because it is prime and its reverse (1463233663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3663323641 - 2⁹ = 3663323129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3663323641.

It is not a weakly prime, because it can be changed into another prime (3663323611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1831661820 + 1831661821.

It is an arithmetic number, because the mean of its divisors is an integer number (1831661821).

Almost surely, 2^3663323641 is an apocalyptic number.

It is an amenable number.

3663323641 is a deficient number, since it is larger than the sum of its proper divisors (1).

3663323641 is an equidigital number, since it uses as much as digits as its factorization.

3663323641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 37.

The square root of 3663323641 is about 60525.3966612363. The cubic root of 3663323641 is about 1541.5528892291.

The spelling of 3663323641 in words is "three billion, six hundred sixty-three million, three hundred twenty-three thousand, six hundred forty-one".