564840323040556 has 24 divisors (see below), whose sum is σ = 993001513624064. Its totient is φ = 281127460862160.

The previous prime is 564840323040541. The next prime is 564840323040577. The reversal of 564840323040556 is 655040323048465.

It is a junction number, because it is equal to n+sod(n) for n = 564840323040497 and 564840323040506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230781960 + ... + 233216623.

Almost surely, 2^{564840323040556} is an apocalyptic number.

It is an amenable number.

564840323040556 is a deficient number, since it is larger than the sum of its proper divisors (428161190583508).

564840323040556 is a wasteful number, since it uses less digits than its factorization.

564840323040556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463999981 (or 463999979 counting only the distinct ones).

The product of its (nonzero) digits is 41472000, while the sum is 55.

The spelling of 564840323040556 in words is "five hundred sixty-four trillion, eight hundred forty billion, three hundred twenty-three million, forty thousand, five hundred fifty-six".