6616735109 has 2 divisors, whose sum is σ = 6616735110. Its totient is φ = 6616735108.

The previous prime is 6616735067. The next prime is 6616735133. The reversal of 6616735109 is 9015376166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5686668100 + 930067009 = 75410^2 + 30497^2 .

It is a cyclic number.

It is not a de Polignac number, because 6616735109 - 2³² = 2321767813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6616735109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6616735309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3308367554 + 3308367555.

It is an arithmetic number, because the mean of its divisors is an integer number (3308367555).

Almost surely, 2^6616735109 is an apocalyptic number.

It is an amenable number.

6616735109 is a deficient number, since it is larger than the sum of its proper divisors (1).

6616735109 is an equidigital number, since it uses as much as digits as its factorization.

6616735109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 6616735109 is about 81343.3163142492. The cubic root of 6616735109 is about 1877.3615384624.

The spelling of 6616735109 in words is "six billion, six hundred sixteen million, seven hundred thirty-five thousand, one hundred nine".