564820500556854 has 16 divisors (see below), whose sum is σ = 1255156667904240. Its totient is φ = 188273500185600.

The previous prime is 564820500556849. The next prime is 564820500556877. The reversal of 564820500556854 is 458655005028465.

564820500556854 is a `hidden beast` number, since 5 + 6 + 4 + 8 + 20 + 5 + 0 + 0 + 556 + 8 + 54 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 564820500556791 and 564820500556800.

It is a congruent number.

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, 5229819449547 + ... + 5229819449654.

It is an arithmetic number, because the mean of its divisors is an integer number (78447291744015).

Almost surely, 2^{564820500556854} is an apocalyptic number.

564820500556854 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

564820500556854 is an abundant number, since it is smaller than the sum of its proper divisors (690336167347386).

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

564820500556854 is a wasteful number, since it uses less digits than its factorization.

564820500556854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10459638899212 (or 10459638899206 counting only the distinct ones).

The product of its (nonzero) digits is 230400000, while the sum is 63.

The spelling of 564820500556854 in words is "five hundred sixty-four trillion, eight hundred twenty billion, five hundred million, five hundred fifty-six thousand, eight hundred fifty-four".