3516661663 has 2 divisors, whose sum is σ = 3516661664. Its totient is φ = 3516661662.

The previous prime is 3516661661. The next prime is 3516661693. The reversal of 3516661663 is 3661666153.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3516661663 - 2¹ = 3516661661 is a prime.

Together with 3516661661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3516661661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1758330831 + 1758330832.

It is an arithmetic number, because the mean of its divisors is an integer number (1758330832).

Almost surely, 2^3516661663 is an apocalyptic number.

3516661663 is a deficient number, since it is larger than the sum of its proper divisors (1).

3516661663 is an equidigital number, since it uses as much as digits as its factorization.

3516661663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 43.

The square root of 3516661663 is about 59301.4473938031. The cubic root of 3516661663 is about 1520.6999406504.

The spelling of 3516661663 in words is "three billion, five hundred sixteen million, six hundred sixty-one thousand, six hundred sixty-three".