68133466680 has 256 divisors, whose sum is σ = 211973414400. Its totient is φ = 17511137280.

The previous prime is 68133466649. The next prime is 68133466759. The reversal of 68133466680 is 8666433186.

68133466680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 124558167 + ... + 124558713.

It is an arithmetic number, because the mean of its divisors is an integer number (828021150).

Almost surely, 2^68133466680 is an apocalyptic number.

68133466680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68133466680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105986707200).

68133466680 is an abundant number, since it is smaller than the sum of its proper divisors (143839947720).

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

68133466680 is a wasteful number, since it uses less digits than its factorization.

68133466680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 51.

The spelling of 68133466680 in words is "sixty-eight billion, one hundred thirty-three million, four hundred sixty-six thousand, six hundred eighty".