21996595596 has 24 divisors (see below), whose sum is σ = 54344530800. Its totient is φ = 6900892672.

The previous prime is 21996595567. The next prime is 21996595603. The reversal of 21996595596 is 69559569912.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53913021 + ... + 53913428.

It is an arithmetic number, because the mean of its divisors is an integer number (2264355450).

Almost surely, 2^21996595596 is an apocalyptic number.

It is an amenable number.

21996595596 is an abundant number, since it is smaller than the sum of its proper divisors (32347935204).

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

21996595596 is a wasteful number, since it uses less digits than its factorization.

21996595596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107826473 (or 107826471 counting only the distinct ones).

The product of its digits is 59049000, while the sum is 66.

The spelling of 21996595596 in words is "twenty-one billion, nine hundred ninety-six million, five hundred ninety-five thousand, five hundred ninety-six".