68355168 has 48 divisors (see below), whose sum is σ = 205067520. Its totient is φ = 19529856.

The previous prime is 68355163. The next prime is 68355173. The reversal of 68355168 is 86155386.

It is an interprime number because it is at equal distance from previous prime (68355163) and next prime (68355173).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68355163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50188 + ... + 51531.

It is an arithmetic number, because the mean of its divisors is an integer number (4272240).

Almost surely, 2^68355168 is an apocalyptic number.

It is an amenable number.

68355168 is an abundant number, since it is smaller than the sum of its proper divisors (136712352).

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

68355168 is a wasteful number, since it uses less digits than its factorization.

68355168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101739 (or 101731 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The square root of 68355168 is about 8267.7184277163. The cubic root of 68355168 is about 408.8749007152.

The spelling of 68355168 in words is "sixty-eight million, three hundred fifty-five thousand, one hundred sixty-eight".