221563065263 has 8 divisors (see below), whose sum is σ = 226865074176. Its totient is φ = 216321651000.

The previous prime is 221563065257. The next prime is 221563065349. The reversal of 221563065263 is 362560365122.

221563065263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221563065263 - 2²⁸ = 221294629807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221563065263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221563065203) by changing a digit.

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, 15141263 + ... + 15155888.

It is an arithmetic number, because the mean of its divisors is an integer number (28358134272).

Almost surely, 2^221563065263 is an apocalyptic number.

221563065263 is a deficient number, since it is larger than the sum of its proper divisors (5302008913).

221563065263 is a wasteful number, since it uses less digits than its factorization.

221563065263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30297325.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 221563065263 in words is "two hundred twenty-one billion, five hundred sixty-three million, sixty-five thousand, two hundred sixty-three".