3220616563 has 4 divisors (see below), whose sum is σ = 3225975928. Its totient is φ = 3215257200.

The previous prime is 3220616549. The next prime is 3220616611. The reversal of 3220616563 is 3656160223.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3220616563 - 2¹³ = 3220608371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3220616513) 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 in 3 ways as a sum of consecutive naturals, for example, 2678781 + ... + 2679982.

It is an arithmetic number, because the mean of its divisors is an integer number (806493982).

Almost surely, 2^3220616563 is an apocalyptic number.

3220616563 is a deficient number, since it is larger than the sum of its proper divisors (5359365).

3220616563 is an equidigital number, since it uses as much as digits as its factorization.

3220616563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5359364.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 3220616563 is about 56750.4763239922. The cubic root of 3220616563 is about 1476.7704968432.

Adding to 3220616563 its reverse (3656160223), we get a palindrome (6876776786).

The spelling of 3220616563 in words is "three billion, two hundred twenty million, six hundred sixteen thousand, five hundred sixty-three".