24681616905668 has 6 divisors (see below), whose sum is σ = 43192829584926. Its totient is φ = 12340808452832.

The previous prime is 24681616905653. The next prime is 24681616905709. The reversal of 24681616905668 is 86650961618642.

It can be written as a sum of positive squares in only one way, i.e., 13823062971844 + 10858553933824 = 3717938^2 + 3295232^2 .

It is a junction number, because it is equal to n+sod(n) for n = 24681616905598 and 24681616905607.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3085202113205 + ... + 3085202113212.

It is an arithmetic number, because the mean of its divisors is an integer number (7198804930821).

Almost surely, 2^{24681616905668} is an apocalyptic number.

It is an amenable number.

24681616905668 is a deficient number, since it is larger than the sum of its proper divisors (18511212679258).

24681616905668 is a wasteful number, since it uses less digits than its factorization.

24681616905668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6170404226421 (or 6170404226419 counting only the distinct ones).

The product of its (nonzero) digits is 179159040, while the sum is 68.

The spelling of 24681616905668 in words is "twenty-four trillion, six hundred eighty-one billion, six hundred sixteen million, nine hundred five thousand, six hundred sixty-eight".