68257222080 has 224 divisors, whose sum is σ = 219759946560. Its totient is φ = 17947852800.

The previous prime is 68257222079. The next prime is 68257222081. The reversal of 68257222080 is 8022275286.

68257222080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (68257222079) and next prime (68257222081).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68257222081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26080932 + ... + 26083548.

It is an arithmetic number, because the mean of its divisors is an integer number (981071190).

Almost surely, 2^68257222080 is an apocalyptic number.

68257222080 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 68257222080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109879973280).

68257222080 is an abundant number, since it is smaller than the sum of its proper divisors (151502724480).

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

68257222080 is a wasteful number, since it uses less digits than its factorization.

68257222080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007 (or 2997 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 68257222080 in words is "sixty-eight billion, two hundred fifty-seven million, two hundred twenty-two thousand, eighty".