556537716 has 240 divisors, whose sum is σ = 1779757056. Its totient is φ = 148205376.

The previous prime is 556537697. The next prime is 556537727. The reversal of 556537716 is 617735655.

556537716 is a `hidden beast` number, since 5 + 565 + 3 + 77 + 16 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2451595 + ... + 2451821.

Almost surely, 2^556537716 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 556537716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (889878528).

556537716 is an abundant number, since it is smaller than the sum of its proper divisors (1223219340).

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

556537716 is a wasteful number, since it uses less digits than its factorization.

556537716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 309 counting only the distinct ones).

The product of its digits is 661500, while the sum is 45.

The square root of 556537716 is about 23591.0516086079. The cubic root of 556537716 is about 822.5548494324.

The spelling of 556537716 in words is "five hundred fifty-six million, five hundred thirty-seven thousand, seven hundred sixteen".