21314055536 has 20 divisors (see below), whose sum is σ = 41307382200. Its totient is φ = 10654085952.

The previous prime is 21314055481. The next prime is 21314055563. The reversal of 21314055536 is 63555041312.

It is a junction number, because it is equal to n+sod(n) for n = 21314055496 and 21314055505.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 123491 + ... + 240578.

It is an arithmetic number, because the mean of its divisors is an integer number (2065369110).

Almost surely, 2^21314055536 is an apocalyptic number.

It is an amenable number.

21314055536 is a deficient number, since it is larger than the sum of its proper divisors (19993326664).

21314055536 is a wasteful number, since it uses less digits than its factorization.

21314055536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367736 (or 367730 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

Adding to 21314055536 its reverse (63555041312), we get a palindrome (84869096848).

The spelling of 21314055536 in words is "twenty-one billion, three hundred fourteen million, fifty-five thousand, five hundred thirty-six".