6615060600257 has 2 divisors, whose sum is σ = 6615060600258. Its totient is φ = 6615060600256.

The previous prime is 6615060600241. The next prime is 6615060600259. The reversal of 6615060600257 is 7520060605166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4939599595441 + 1675461004816 = 2222521^2 + 1294396^2 .

It is a cyclic number.

It is not a de Polignac number, because 6615060600257 - 2⁴ = 6615060600241 is a prime.

It is a super-2 number, since 2×6615060600257² (a number of 26 digits) contains 22 as substring.

Together with 6615060600259, 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 (6615060600259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3307530300128 + 3307530300129.

It is an arithmetic number, because the mean of its divisors is an integer number (3307530300129).

Almost surely, 2^{6615060600257} is an apocalyptic number.

It is an amenable number.

6615060600257 is a deficient number, since it is larger than the sum of its proper divisors (1).

6615060600257 is an equidigital number, since it uses as much as digits as its factorization.

6615060600257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 6615060600257 in words is "six trillion, six hundred fifteen billion, sixty million, six hundred thousand, two hundred fifty-seven".