22521416163 has 16 divisors (see below), whose sum is σ = 30287500320. Its totient is φ = 14885093376.

The previous prime is 22521416147. The next prime is 22521416171. The reversal of 22521416163 is 36161412522.

It is not a de Polignac number, because 22521416163 - 2⁴ = 22521416147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22521416263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280431 + ... + 351687.

It is an arithmetic number, because the mean of its divisors is an integer number (1892968770).

Almost surely, 2^22521416163 is an apocalyptic number.

22521416163 is a deficient number, since it is larger than the sum of its proper divisors (7766084157).

22521416163 is a wasteful number, since it uses less digits than its factorization.

22521416163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72166.

The product of its digits is 17280, while the sum is 33.

Adding to 22521416163 its reverse (36161412522), we get a palindrome (58682828685).

The spelling of 22521416163 in words is "twenty-two billion, five hundred twenty-one million, four hundred sixteen thousand, one hundred sixty-three".