6336622661 has 2 divisors, whose sum is σ = 6336622662. Its totient is φ = 6336622660.

The previous prime is 6336622639. The next prime is 6336622703. The reversal of 6336622661 is 1662266336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5090109025 + 1246513636 = 71345^2 + 35306^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6336622661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6336612661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3168311330 + 3168311331.

It is an arithmetic number, because the mean of its divisors is an integer number (3168311331).

Almost surely, 2^6336622661 is an apocalyptic number.

It is an amenable number.

6336622661 is a deficient number, since it is larger than the sum of its proper divisors (1).

6336622661 is an equidigital number, since it uses as much as digits as its factorization.

6336622661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 41.

The square root of 6336622661 is about 79602.9061090109. The cubic root of 6336622661 is about 1850.4866176443.

Adding to 6336622661 its reverse (1662266336), we get a palindrome (7998888997).

The spelling of 6336622661 in words is "six billion, three hundred thirty-six million, six hundred twenty-two thousand, six hundred sixty-one".