6613664353 has 2 divisors, whose sum is σ = 6613664354. Its totient is φ = 6613664352.

The previous prime is 6613664327. The next prime is 6613664359. The reversal of 6613664353 is 3534663166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6524115984 + 89548369 = 80772^2 + 9463^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6613664353 is a prime.

It is not a weakly prime, because it can be changed into another prime (6613664359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3306832176 + 3306832177.

It is an arithmetic number, because the mean of its divisors is an integer number (3306832177).

Almost surely, 2^6613664353 is an apocalyptic number.

It is an amenable number.

6613664353 is a deficient number, since it is larger than the sum of its proper divisors (1).

6613664353 is an equidigital number, since it uses as much as digits as its factorization.

6613664353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 43.

The square root of 6613664353 is about 81324.4388422078. The cubic root of 6613664353 is about 1877.0710723863.

The spelling of 6613664353 in words is "six billion, six hundred thirteen million, six hundred sixty-four thousand, three hundred fifty-three".