556544404445655 has 32 divisors (see below), whose sum is σ = 961228116840960. Its totient is φ = 274128018496640.

The previous prime is 556544404445633. The next prime is 556544404445663.

556544404445655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 556544404445655 - 2⁷ = 556544404445527 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27813303561 + ... + 27813323570.

It is an arithmetic number, because the mean of its divisors is an integer number (30038378651280).

Almost surely, 2^{556544404445655} is an apocalyptic number.

556544404445655 is a deficient number, since it is larger than the sum of its proper divisors (404683712395305).

556544404445655 is a wasteful number, since it uses less digits than its factorization.

556544404445655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55626627191.

The product of its (nonzero) digits is 2304000000, while the sum is 66.

The spelling of 556544404445655 in words is "five hundred fifty-six trillion, five hundred forty-four billion, four hundred four million, four hundred forty-five thousand, six hundred fifty-five".