564881104445855 has 128 divisors (see below), whose sum is σ = 753730790400000. Its totient is φ = 404866113619968.

The previous prime is 564881104445851. The next prime is 564881104445869. The reversal of 564881104445855 is 558544401188465.

It is not a de Polignac number, because 564881104445855 - 2² = 564881104445851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564881104445851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 62013510041 + ... + 62013519149.

It is an arithmetic number, because the mean of its divisors is an integer number (5888521800000).

Almost surely, 2^{564881104445855} is an apocalyptic number.

564881104445855 is a deficient number, since it is larger than the sum of its proper divisors (188849685954145).

564881104445855 is a wasteful number, since it uses less digits than its factorization.

564881104445855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10641.

The product of its (nonzero) digits is 491520000, while the sum is 68.

The spelling of 564881104445855 in words is "five hundred sixty-four trillion, eight hundred eighty-one billion, one hundred four million, four hundred forty-five thousand, eight hundred fifty-five".