21652612113326 has 16 divisors (see below), whose sum is σ = 32486631206400. Its totient is φ = 10823735304408.

The previous prime is 21652612113311. The next prime is 21652612113367. The reversal of 21652612113326 is 62331121625612.

It is a super-2 number, since 2×21652612113326² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202642751 + ... + 202749573.

It is an arithmetic number, because the mean of its divisors is an integer number (2030414450400).

Almost surely, 2^{21652612113326} is an apocalyptic number.

21652612113326 is a deficient number, since it is larger than the sum of its proper divisors (10834019093074).

21652612113326 is a wasteful number, since it uses less digits than its factorization.

21652612113326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129943.

The product of its digits is 155520, while the sum is 41.

Adding to 21652612113326 its reverse (62331121625612), we get a palindrome (83983733738938).

The spelling of 21652612113326 in words is "twenty-one trillion, six hundred fifty-two billion, six hundred twelve million, one hundred thirteen thousand, three hundred twenty-six".