21111616096 has 24 divisors (see below), whose sum is σ = 43370604144. Its totient is φ = 10096859520.

The previous prime is 21111616051. The next prime is 21111616139. The reversal of 21111616096 is 69061611112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14341395 + ... + 14342866.

It is an arithmetic number, because the mean of its divisors is an integer number (1807108506).

Almost surely, 2^21111616096 is an apocalyptic number.

It is an amenable number.

21111616096 is an abundant number, since it is smaller than the sum of its proper divisors (22258988048).

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

21111616096 is a wasteful number, since it uses less digits than its factorization.

21111616096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28684294 (or 28684286 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 34.

The spelling of 21111616096 in words is "twenty-one billion, one hundred eleven million, six hundred sixteen thousand, ninety-six".