564739065816 has 128 divisors (see below), whose sum is σ = 1531528689600. Its totient is φ = 172868567040.

The previous prime is 564739065811. The next prime is 564739065859. The reversal of 564739065816 is 618560937465.

It is a super-3 number, since 3×564739065816³ (a number of 36 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 564739065816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564739065811) 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 31 ways as a sum of consecutive naturals, for example, 3841800 + ... + 3986088.

Almost surely, 2^564739065816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 564739065816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765764344800).

564739065816 is an abundant number, since it is smaller than the sum of its proper divisors (966789623784).

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

564739065816 is a wasteful number, since it uses less digits than its factorization.

564739065816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144549 (or 144545 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 60.

The spelling of 564739065816 in words is "five hundred sixty-four billion, seven hundred thirty-nine million, sixty-five thousand, eight hundred sixteen".