6646053013 has 2 divisors, whose sum is σ = 6646053014. Its totient is φ = 6646053012.

The previous prime is 6646052983. The next prime is 6646053019. The reversal of 6646053013 is 3103506466.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5069724804 + 1576328209 = 71202^2 + 39703^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6646053013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6646053013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6646053019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3323026506 + 3323026507.

It is an arithmetic number, because the mean of its divisors is an integer number (3323026507).

Almost surely, 2^6646053013 is an apocalyptic number.

It is an amenable number.

6646053013 is a deficient number, since it is larger than the sum of its proper divisors (1).

6646053013 is an equidigital number, since it uses as much as digits as its factorization.

6646053013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 6646053013 is about 81523.3280294665. The cubic root of 6646053013 is about 1880.1302359038.

Adding to 6646053013 its reverse (3103506466), we get a palindrome (9749559479).

The spelling of 6646053013 in words is "six billion, six hundred forty-six million, fifty-three thousand, thirteen".