3616222661 has 2 divisors, whose sum is σ = 3616222662. Its totient is φ = 3616222660.

The previous prime is 3616222637. The next prime is 3616222663. The reversal of 3616222661 is 1662226163.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3611409025 + 4813636 = 60095^2 + 2194^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3616222661 is a prime.

Together with 3616222663, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3616222663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1808111330 + 1808111331.

It is an arithmetic number, because the mean of its divisors is an integer number (1808111331).

Almost surely, 2^3616222661 is an apocalyptic number.

It is an amenable number.

3616222661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3616222661 is an equidigital number, since it uses as much as digits as its factorization.

3616222661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 35.

The square root of 3616222661 is about 60135.0368836671. The cubic root of 3616222661 is about 1534.9175594723.

The spelling of 3616222661 in words is "three billion, six hundred sixteen million, two hundred twenty-two thousand, six hundred sixty-one".