68686506560 has 168 divisors, whose sum is σ = 196402293504. Its totient is φ = 22789831680.

The previous prime is 68686506557. The next prime is 68686506571. The reversal of 68686506560 is 6560568686.

68686506560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a junction number, because it is equal to n+sod(n) for n = 68686506496 and 68686506505.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 415427 + ... + 556733.

Almost surely, 2^68686506560 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 68686506560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98201146752).

68686506560 is an abundant number, since it is smaller than the sum of its proper divisors (127715786944).

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

68686506560 is a wasteful number, since it uses less digits than its factorization.

68686506560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141369 (or 141352 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 56.

The spelling of 68686506560 in words is "sixty-eight billion, six hundred eighty-six million, five hundred six thousand, five hundred sixty".