556605601656 has 64 divisors (see below), whose sum is σ = 1498696187520. Its totient is φ = 171246960000.

The previous prime is 556605601649. The next prime is 556605601697. The reversal of 556605601656 is 656106506655.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 556605601599 and 556605601608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3431031 + ... + 3589593.

It is an arithmetic number, because the mean of its divisors is an integer number (23417127930).

Almost surely, 2^556605601656 is an apocalyptic number.

It is an amenable number.

556605601656 is an abundant number, since it is smaller than the sum of its proper divisors (942090585864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

556605601656 is a wasteful number, since it uses less digits than its factorization.

556605601656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169836 (or 169832 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 51.

The spelling of 556605601656 in words is "five hundred fifty-six billion, six hundred five million, six hundred one thousand, six hundred fifty-six".