6221612633 has 2 divisors, whose sum is σ = 6221612634. Its totient is φ = 6221612632.

The previous prime is 6221612591. The next prime is 6221612659. The reversal of 6221612633 is 3362161226.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5212406809 + 1009205824 = 72197^2 + 31768^2 .

It is a cyclic number.

It is not a de Polignac number, because 6221612633 - 2¹⁰ = 6221611609 is a prime.

It is a super-3 number, since 3×6221612633³ (a number of 30 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6221612633.

It is not a weakly prime, because it can be changed into another prime (6221615633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3110806316 + 3110806317.

It is an arithmetic number, because the mean of its divisors is an integer number (3110806317).

Almost surely, 2^6221612633 is an apocalyptic number.

It is an amenable number.

6221612633 is a deficient number, since it is larger than the sum of its proper divisors (1).

6221612633 is an equidigital number, since it uses as much as digits as its factorization.

6221612633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 32.

The square root of 6221612633 is about 78877.1997030828. The cubic root of 6221612633 is about 1839.2227176338. Note that the first 3 decimals are identical.

Adding to 6221612633 its reverse (3362161226), we get a palindrome (9583773859).

The spelling of 6221612633 in words is "six billion, two hundred twenty-one million, six hundred twelve thousand, six hundred thirty-three".