6555957856337 has 2 divisors, whose sum is σ = 6555957856338. Its totient is φ = 6555957856336.

The previous prime is 6555957856237. The next prime is 6555957856339. The reversal of 6555957856337 is 7336587595556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6514214871616 + 41742984721 = 2552296^2 + 204311^2 .

It is a cyclic number.

It is not a de Polignac number, because 6555957856337 - 2²⁰ = 6555956807761 is a prime.

Together with 6555957856339, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6555957856339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3277978928168 + 3277978928169.

It is an arithmetic number, because the mean of its divisors is an integer number (3277978928169).

Almost surely, 2^{6555957856337} is an apocalyptic number.

It is an amenable number.

6555957856337 is a deficient number, since it is larger than the sum of its proper divisors (1).

6555957856337 is an equidigital number, since it uses as much as digits as its factorization.

6555957856337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3572100000, while the sum is 74.

The spelling of 6555957856337 in words is "six trillion, five hundred fifty-five billion, nine hundred fifty-seven million, eight hundred fifty-six thousand, three hundred thirty-seven".