563661004110645 has 64 divisors (see below), whose sum is σ = 1034864172195840. Its totient is φ = 256633264597248.

The previous prime is 563661004110553. The next prime is 563661004110653. The reversal of 563661004110645 is 546011400166365.

It is not a de Polignac number, because 563661004110645 - 2⁹ = 563661004110133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 563661004110594 and 563661004110603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14763651 + ... + 36678159.

It is an arithmetic number, because the mean of its divisors is an integer number (16169752690560).

Almost surely, 2^{563661004110645} is an apocalyptic number.

It is an amenable number.

563661004110645 is a deficient number, since it is larger than the sum of its proper divisors (471203168085195).

563661004110645 is a wasteful number, since it uses less digits than its factorization.

563661004110645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21915514.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 563661004110645 in words is "five hundred sixty-three trillion, six hundred sixty-one billion, four million, one hundred ten thousand, six hundred forty-five".