556368720446 has 64 divisors (see below), whose sum is σ = 1098495889920. Its totient is φ = 204748508160.

The previous prime is 556368720367. The next prime is 556368720461. The reversal of 556368720446 is 644027863655.

It is a junction number, because it is equal to n+sod(n) for n = 556368720391 and 556368720400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 703946 + ... + 1268178.

It is an arithmetic number, because the mean of its divisors is an integer number (17163998280).

Almost surely, 2^556368720446 is an apocalyptic number.

556368720446 is a deficient number, since it is larger than the sum of its proper divisors (542127169474).

556368720446 is a wasteful number, since it uses less digits than its factorization.

556368720446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564609.

The product of its (nonzero) digits is 29030400, while the sum is 56.

The spelling of 556368720446 in words is "five hundred fifty-six billion, three hundred sixty-eight million, seven hundred twenty thousand, four hundred forty-six".