6625453565117 has 2 divisors, whose sum is σ = 6625453565118. Its totient is φ = 6625453565116.

The previous prime is 6625453565051. The next prime is 6625453565119. The reversal of 6625453565117 is 7115653545266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4626719262361 + 1998734302756 = 2150981^2 + 1413766^2 .

It is a cyclic number.

It is not a de Polignac number, because 6625453565117 - 2¹⁸ = 6625453302973 is a prime.

Together with 6625453565119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6625453565119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3312726782558 + 3312726782559.

It is an arithmetic number, because the mean of its divisors is an integer number (3312726782559).

Almost surely, 2^{6625453565117} is an apocalyptic number.

It is an amenable number.

6625453565117 is a deficient number, since it is larger than the sum of its proper divisors (1).

6625453565117 is an equidigital number, since it uses as much as digits as its factorization.

6625453565117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680000, while the sum is 56.

The spelling of 6625453565117 in words is "six trillion, six hundred twenty-five billion, four hundred fifty-three million, five hundred sixty-five thousand, one hundred seventeen".