21296223796736 has 80 divisors (see below), whose sum is σ = 49943859135456. Its totient is φ = 8880278593536.

The previous prime is 21296223796697. The next prime is 21296223796751. The reversal of 21296223796736 is 63769732269212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80165051 + ... + 80430266.

Almost surely, 2^{21296223796736} is an apocalyptic number.

It is an amenable number.

21296223796736 is an abundant number, since it is smaller than the sum of its proper divisors (28647635338720).

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

21296223796736 is an equidigital number, since it uses as much as digits as its factorization.

21296223796736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160595379 (or 160595363 counting only the distinct ones).

The product of its digits is 123451776, while the sum is 65.

The spelling of 21296223796736 in words is "twenty-one trillion, two hundred ninety-six billion, two hundred twenty-three million, seven hundred ninety-six thousand, seven hundred thirty-six".