21600397096992 has 384 divisors, whose sum is σ = 72863313868800. Its totient is φ = 6097908096000.

The previous prime is 21600397096961. The next prime is 21600397097011. The reversal of 21600397096992 is 29969079300612.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 299890359 + ... + 299962377.

It is an arithmetic number, because the mean of its divisors is an integer number (189748213200).

Almost surely, 2^{21600397096992} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21600397096992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36431656934400).

21600397096992 is an abundant number, since it is smaller than the sum of its proper divisors (51262916771808).

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

21600397096992 is a wasteful number, since it uses less digits than its factorization.

21600397096992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72637 (or 72623 counting only the distinct ones).

The product of its (nonzero) digits is 19840464, while the sum is 63.

The spelling of 21600397096992 in words is "twenty-one trillion, six hundred billion, three hundred ninety-seven million, ninety-six thousand, nine hundred ninety-two".