556246656 has 128 divisors (see below), whose sum is σ = 1876310400. Its totient is φ = 158920704.

The previous prime is 556246619. The next prime is 556246657. The reversal of 556246656 is 656642655.

It is a happy number.

556246656 is a `hidden beast` number, since 556 + 2 + 46 + 6 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×556246656² = 618820684622364672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (556246657) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12696 + ... + 35688.

It is an arithmetic number, because the mean of its divisors is an integer number (14658675).

Almost surely, 2^556246656 is an apocalyptic number.

556246656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556246656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (938155200).

556246656 is an abundant number, since it is smaller than the sum of its proper divisors (1320063744).

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

556246656 is a wasteful number, since it uses less digits than its factorization.

556246656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23023 (or 23005 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 45.

The square root of 556246656 is about 23584.8819373767. The cubic root of 556246656 is about 822.4114302438.

The spelling of 556246656 in words is "five hundred fifty-six million, two hundred forty-six thousand, six hundred fifty-six".