563403315304661 has 16 divisors (see below), whose sum is σ = 607020719929344. Its totient is φ = 519825765131904.

The previous prime is 563403315304651. The next prime is 563403315304679. The reversal of 563403315304661 is 166403513304365.

It is a cyclic number.

It is not a de Polignac number, because 563403315304661 - 2¹⁰ = 563403315303637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563403315304631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324203105 + ... + 325936281.

It is an arithmetic number, because the mean of its divisors is an integer number (37938794995584).

Almost surely, 2^{563403315304661} is an apocalyptic number.

It is an amenable number.

563403315304661 is a deficient number, since it is larger than the sum of its proper divisors (43617404624683).

563403315304661 is a wasteful number, since it uses less digits than its factorization.

563403315304661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744660.

The product of its (nonzero) digits is 6998400, while the sum is 50.

The spelling of 563403315304661 in words is "five hundred sixty-three trillion, four hundred three billion, three hundred fifteen million, three hundred four thousand, six hundred sixty-one".