6330645624557 has 2 divisors, whose sum is σ = 6330645624558. Its totient is φ = 6330645624556.

The previous prime is 6330645624533. The next prime is 6330645624559. The reversal of 6330645624557 is 7554265460336.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3914327713156 + 2416317911401 = 1978466^2 + 1554451^2 .

It is a cyclic number.

It is not a de Polignac number, because 6330645624557 - 2²⁶ = 6330578515693 is a prime.

Together with 6330645624559, 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 (6330645624559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3165322812278 + 3165322812279.

It is an arithmetic number, because the mean of its divisors is an integer number (3165322812279).

Almost surely, 2^{6330645624557} is an apocalyptic number.

It is an amenable number.

6330645624557 is a deficient number, since it is larger than the sum of its proper divisors (1).

6330645624557 is an equidigital number, since it uses as much as digits as its factorization.

6330645624557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432000, while the sum is 56.

The spelling of 6330645624557 in words is "six trillion, three hundred thirty billion, six hundred forty-five million, six hundred twenty-four thousand, five hundred fifty-seven".