563221376556640 has 48 divisors (see below), whose sum is σ = 1330611931031040. Its totient is φ = 225288308689920.

The previous prime is 563221376556607. The next prime is 563221376556743. The reversal of 563221376556640 is 46655673122365.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 264750316 + ... + 266869204.

It is an arithmetic number, because the mean of its divisors is an integer number (27721081896480).

Almost surely, 2^{563221376556640} is an apocalyptic number.

It is an amenable number.

563221376556640 is an abundant number, since it is smaller than the sum of its proper divisors (767390554474400).

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

563221376556640 is a wasteful number, since it uses less digits than its factorization.

563221376556640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3780215 (or 3780207 counting only the distinct ones).

The product of its (nonzero) digits is 163296000, while the sum is 61.

The spelling of 563221376556640 in words is "five hundred sixty-three trillion, two hundred twenty-one billion, three hundred seventy-six million, five hundred fifty-six thousand, six hundred forty".