6616297679 has 2 divisors, whose sum is σ = 6616297680. Its totient is φ = 6616297678.

The previous prime is 6616297669. The next prime is 6616297741. The reversal of 6616297679 is 9767926166.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6616297679 - 2²⁸ = 6347862223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6616297669) 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, 3308148839 + 3308148840.

It is an arithmetic number, because the mean of its divisors is an integer number (3308148840).

Almost surely, 2^6616297679 is an apocalyptic number.

6616297679 is a deficient number, since it is larger than the sum of its proper divisors (1).

6616297679 is an equidigital number, since it uses as much as digits as its factorization.

6616297679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10287648, while the sum is 59.

The square root of 6616297679 is about 81340.6274809827. The cubic root of 6616297679 is about 1877.3201669833.

The spelling of 6616297679 in words is "six billion, six hundred sixteen million, two hundred ninety-seven thousand, six hundred seventy-nine".