68666158080 has 704 divisors, whose sum is σ = 276767500800. Its totient is φ = 16004874240.

The previous prime is 68666158031. The next prime is 68666158111. The reversal of 68666158080 is 8085166686.

It is a happy number.

68666158080 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 (54).

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, 34144275 + ... + 34146285.

Almost surely, 2^68666158080 is an apocalyptic number.

68666158080 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 68666158080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138383750400).

68666158080 is an abundant number, since it is smaller than the sum of its proper divisors (208101342720).

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

68666158080 is a wasteful number, since it uses less digits than its factorization.

68666158080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077 (or 2053 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 68666158080 in words is "sixty-eight billion, six hundred sixty-six million, one hundred fifty-eight thousand, eighty".