67716320112 has 280 divisors, whose sum is σ = 236649714560. Its totient is φ = 18328809600.

The previous prime is 67716320071. The next prime is 67716320123. The reversal of 67716320112 is 21102361776.

It is a happy number.

67716320112 is a `hidden beast` number, since 6 + 7 + 7 + 1 + 632 + 0 + 1 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1529487 + ... + 1573137.

It is an arithmetic number, because the mean of its divisors is an integer number (845177552).

Almost surely, 2^67716320112 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 67716320112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118324857280).

67716320112 is an abundant number, since it is smaller than the sum of its proper divisors (168933394448).

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

67716320112 is a wasteful number, since it uses less digits than its factorization.

67716320112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43703 (or 43682 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

Adding to 67716320112 its reverse (21102361776), we get a palindrome (88818681888).

The spelling of 67716320112 in words is "sixty-seven billion, seven hundred sixteen million, three hundred twenty thousand, one hundred twelve".