263217730024256 has 56 divisors (see below), whose sum is σ = 606726114293376. Its totient is φ = 110958293675520.

The previous prime is 263217730024199. The next prime is 263217730024307. The reversal of 263217730024256 is 652420037712362.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4815870836 + ... + 4815925491.

It is an arithmetic number, because the mean of its divisors is an integer number (10834394898096).

Almost surely, 2^{263217730024256} is an apocalyptic number.

It is an amenable number.

263217730024256 is an abundant number, since it is smaller than the sum of its proper divisors (343508384269120).

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

263217730024256 is an equidigital number, since it uses as much as digits as its factorization.

263217730024256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9631796407 (or 9631796397 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 50.

The spelling of 263217730024256 in words is "two hundred sixty-three trillion, two hundred seventeen billion, seven hundred thirty million, twenty-four thousand, two hundred fifty-six".