564641615066 has 8 divisors (see below), whose sum is σ = 855693994260. Its totient is φ = 279410283648.

The previous prime is 564641615053. The next prime is 564641615081. The reversal of 564641615066 is 660516146465.

564641615066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 540549918841 + 24091696225 = 735221^2 + 155215^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1455261701 + ... + 1455262088.

Almost surely, 2^564641615066 is an apocalyptic number.

564641615066 is a deficient number, since it is larger than the sum of its proper divisors (291052379194).

564641615066 is a wasteful number, since it uses less digits than its factorization.

564641615066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910523888.

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 564641615066 in words is "five hundred sixty-four billion, six hundred forty-one million, six hundred fifteen thousand, sixty-six".