556464659549 has 2 divisors, whose sum is σ = 556464659550. Its totient is φ = 556464659548.

The previous prime is 556464659537. The next prime is 556464659591. The reversal of 556464659549 is 945956464655.

556464659549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 306971402500 + 249493257049 = 554050^2 + 499493^2 .

It is a cyclic number.

It is not a de Polignac number, because 556464659549 - 2³² = 552169692253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556464659449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278232329774 + 278232329775.

It is an arithmetic number, because the mean of its divisors is an integer number (278232329775).

Almost surely, 2^556464659549 is an apocalyptic number.

It is an amenable number.

556464659549 is a deficient number, since it is larger than the sum of its proper divisors (1).

556464659549 is an equidigital number, since it uses as much as digits as its factorization.

556464659549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840000, while the sum is 68.

The spelling of 556464659549 in words is "five hundred fifty-six billion, four hundred sixty-four million, six hundred fifty-nine thousand, five hundred forty-nine".