556899287040 has 1200 divisors, whose sum is σ = 2158123746240. Its totient is φ = 137027911680.

The previous prime is 556899287023. The next prime is 556899287051. The reversal of 556899287040 is 40782998655.

556899287040 is a `hidden beast` number, since 5 + 568 + 9 + 9 + 28 + 7 + 0 + 40 = 666.

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 79 ways as a sum of consecutive naturals, for example, 6257295316 + ... + 6257295404.

Almost surely, 2^556899287040 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 556899287040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1079061873120).

556899287040 is an abundant number, since it is smaller than the sum of its proper divisors (1601224459200).

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

556899287040 is an equidigital number, since it uses as much as digits as its factorization.

556899287040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 63.

The spelling of 556899287040 in words is "five hundred fifty-six billion, eight hundred ninety-nine million, two hundred eighty-seven thousand, forty".