21416225336 has 64 divisors (see below), whose sum is σ = 46773745920. Its totient is φ = 9094821120.

The previous prime is 21416225333. The next prime is 21416225353. The reversal of 21416225336 is 63352261412.

It is a junction number, because it is equal to n+sod(n) for n = 21416225296 and 21416225305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21416225333) 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, 36005 + ... + 210068.

It is an arithmetic number, because the mean of its divisors is an integer number (730839780).

Almost surely, 2^21416225336 is an apocalyptic number.

It is an amenable number.

21416225336 is an abundant number, since it is smaller than the sum of its proper divisors (25357520584).

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

21416225336 is a wasteful number, since it uses less digits than its factorization.

21416225336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246156 (or 246152 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

Adding to 21416225336 its reverse (63352261412), we get a palindrome (84768486748).

The spelling of 21416225336 in words is "twenty-one billion, four hundred sixteen million, two hundred twenty-five thousand, three hundred thirty-six".