6616136713 has 2 divisors, whose sum is σ = 6616136714. Its totient is φ = 6616136712.

The previous prime is 6616136701. The next prime is 6616136719. The reversal of 6616136713 is 3176316166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6081972169 + 534164544 = 77987^2 + 23112^2 .

It is a cyclic number.

It is not a de Polignac number, because 6616136713 - 2²¹ = 6614039561 is a prime.

It is not a weakly prime, because it can be changed into another prime (6616136719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3308068356 + 3308068357.

It is an arithmetic number, because the mean of its divisors is an integer number (3308068357).

Almost surely, 2^6616136713 is an apocalyptic number.

It is an amenable number.

6616136713 is a deficient number, since it is larger than the sum of its proper divisors (1).

6616136713 is an equidigital number, since it uses as much as digits as its factorization.

6616136713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 40.

The square root of 6616136713 is about 81339.6380186192. The cubic root of 6616136713 is about 1877.3049425993.

The spelling of 6616136713 in words is "six billion, six hundred sixteen million, one hundred thirty-six thousand, seven hundred thirteen".