67968168 has 32 divisors (see below), whose sum is σ = 178864800. Its totient is φ = 21463488.

The previous prime is 67968167. The next prime is 67968179. The reversal of 67968168 is 86186976.

It is a happy number.

It is a super-2 number, since 2×67968168² = 9239343722552448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67968168.

It is not an unprimeable number, because it can be changed into a prime (67968163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74071 + ... + 74982.

It is an arithmetic number, because the mean of its divisors is an integer number (5589525).

Almost surely, 2^67968168 is an apocalyptic number.

It is an amenable number.

67968168 is an abundant number, since it is smaller than the sum of its proper divisors (110896632).

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

67968168 is a wasteful number, since it uses less digits than its factorization.

67968168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149081 (or 149077 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 67968168 is about 8244.2809268001. The cubic root of 67968168 is about 408.1018104250.

The spelling of 67968168 in words is "sixty-seven million, nine hundred sixty-eight thousand, one hundred sixty-eight".