6616297741 has 2 divisors, whose sum is σ = 6616297742. Its totient is φ = 6616297740.

The previous prime is 6616297679. The next prime is 6616297757. The reversal of 6616297741 is 1477926166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4138348900 + 2477948841 = 64330^2 + 49779^2 .

It is a cyclic number.

It is not a de Polignac number, because 6616297741 - 2⁷ = 6616297613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6616292741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3308148870 + 3308148871.

It is an arithmetic number, because the mean of its divisors is an integer number (3308148871).

Almost surely, 2^6616297741 is an apocalyptic number.

It is an amenable number.

6616297741 is a deficient number, since it is larger than the sum of its proper divisors (1).

6616297741 is an equidigital number, since it uses as much as digits as its factorization.

6616297741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 49.

The square root of 6616297741 is about 81340.6278620961. The cubic root of 6616297741 is about 1877.3201728473.

The spelling of 6616297741 in words is "six billion, six hundred sixteen million, two hundred ninety-seven thousand, seven hundred forty-one".