556678445679 has 24 divisors (see below), whose sum is σ = 813182760000. Its totient is φ = 366933038400.

The previous prime is 556678445651. The next prime is 556678445681. The reversal of 556678445679 is 976544876655.

556678445679 is a `hidden beast` number, since 5 + 56 + 6 + 7 + 8 + 4 + 4 + 567 + 9 = 666.

It is not a de Polignac number, because 556678445679 - 2¹⁶ = 556678380143 is a prime.

It is a super-3 number, since 3×556678445679³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556678445579) 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 in 23 ways as a sum of consecutive naturals, for example, 227697 + ... + 1079445.

It is an arithmetic number, because the mean of its divisors is an integer number (33882615000).

Almost surely, 2^556678445679 is an apocalyptic number.

556678445679 is a deficient number, since it is larger than the sum of its proper divisors (256504314321).

556678445679 is a wasteful number, since it uses less digits than its factorization.

556678445679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852575 (or 852572 counting only the distinct ones).

The product of its digits is 1524096000, while the sum is 72.

The spelling of 556678445679 in words is "five hundred fifty-six billion, six hundred seventy-eight million, four hundred forty-five thousand, six hundred seventy-nine".