21652065326 has 4 divisors (see below), whose sum is σ = 32478097992. Its totient is φ = 10826032662.

The previous prime is 21652065319. The next prime is 21652065341. The reversal of 21652065326 is 62356025612.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21652065326.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5413016330 + ... + 5413016333.

It is an arithmetic number, because the mean of its divisors is an integer number (8119524498).

Almost surely, 2^21652065326 is an apocalyptic number.

21652065326 is a deficient number, since it is larger than the sum of its proper divisors (10826032666).

21652065326 is a wasteful number, since it uses less digits than its factorization.

21652065326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10826032665.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 21652065326 in words is "twenty-one billion, six hundred fifty-two million, sixty-five thousand, three hundred twenty-six".