563440325056266 has 64 divisors (see below), whose sum is σ = 1300497149952000. Its totient is φ = 159404068838016.

The previous prime is 563440325056253. The next prime is 563440325056387. The reversal of 563440325056266 is 662650523044365.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36792535 + ... + 49805333.

It is an arithmetic number, because the mean of its divisors is an integer number (20320267968000).

Almost surely, 2^{563440325056266} is an apocalyptic number.

563440325056266 is an abundant number, since it is smaller than the sum of its proper divisors (737056824895734).

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

563440325056266 is a wasteful number, since it uses less digits than its factorization.

563440325056266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13022923.

The product of its (nonzero) digits is 93312000, while the sum is 57.

The spelling of 563440325056266 in words is "five hundred sixty-three trillion, four hundred forty billion, three hundred twenty-five million, fifty-six thousand, two hundred sixty-six".