221413564463 has 16 divisors (see below), whose sum is σ = 272573285376. Its totient is φ = 175143034080.

The previous prime is 221413564429. The next prime is 221413564469. The reversal of 221413564463 is 364465314122.

221413564463 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221413564463 - 2²⁴ = 221396787247 is a prime.

It is a super-2 number, since 2×221413564463² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221413564463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221413564469) 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 15 ways as a sum of consecutive naturals, for example, 103820 + ... + 673502.

It is an arithmetic number, because the mean of its divisors is an integer number (17035830336).

Almost surely, 2^221413564463 is an apocalyptic number.

221413564463 is a deficient number, since it is larger than the sum of its proper divisors (51159720913).

221413564463 is a wasteful number, since it uses less digits than its factorization.

221413564463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573974.

The product of its digits is 414720, while the sum is 41.

Adding to 221413564463 its reverse (364465314122), we get a palindrome (585878878585).

The spelling of 221413564463 in words is "two hundred twenty-one billion, four hundred thirteen million, five hundred sixty-four thousand, four hundred sixty-three".