2660536349 has 2 divisors, whose sum is σ = 2660536350. Its totient is φ = 2660536348.

The previous prime is 2660536321. The next prime is 2660536369. The reversal of 2660536349 is 9436350662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1477864249 + 1182672100 = 38443^2 + 34390^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2660536349 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2660536309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330268174 + 1330268175.

It is an arithmetic number, because the mean of its divisors is an integer number (1330268175).

Almost surely, 2^2660536349 is an apocalyptic number.

It is an amenable number.

2660536349 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660536349 is an equidigital number, since it uses as much as digits as its factorization.

2660536349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 44.

The square root of 2660536349 is about 51580.3872513575. The cubic root of 2660536349 is about 1385.6591021590.

The spelling of 2660536349 in words is "two billion, six hundred sixty million, five hundred thirty-six thousand, three hundred forty-nine".