556666560 has 224 divisors, whose sum is σ = 2067763200. Its totient is φ = 140590080.

The previous prime is 556666559. The next prime is 556666573. The reversal of 556666560 is 65666655.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162465 + ... + 165855.

Almost surely, 2^556666560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556666560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1033881600).

556666560 is an abundant number, since it is smaller than the sum of its proper divisors (1511096640).

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

556666560 is a wasteful number, since it uses less digits than its factorization.

556666560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436 (or 3420 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The square root of 556666560 is about 23593.7822317661. The cubic root of 556666560 is about 822.6183210693.

It can be divided in two parts, 55666 and 6560, that added together give a palindrome (62226).

The spelling of 556666560 in words is "five hundred fifty-six million, six hundred sixty-six thousand, five hundred sixty".