67744223168 has 112 divisors (see below), whose sum is σ = 144146016000. Its totient is φ = 31477248000.

The previous prime is 67744223137. The next prime is 67744223191. The reversal of 67744223168 is 86132244776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30094043 + ... + 30096293.

It is an arithmetic number, because the mean of its divisors is an integer number (1287018000).

Almost surely, 2^67744223168 is an apocalyptic number.

67744223168 is a gapful number since it is divisible by the number (68) 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 67744223168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72073008000).

67744223168 is an abundant number, since it is smaller than the sum of its proper divisors (76401792832).

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

67744223168 is a wasteful number, since it uses less digits than its factorization.

67744223168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618 (or 2608 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 50.

The spelling of 67744223168 in words is "sixty-seven billion, seven hundred forty-four million, two hundred twenty-three thousand, one hundred sixty-eight".