68158608 has 60 divisors (see below), whose sum is σ = 204830640. Its totient is φ = 19473216.

The previous prime is 68158577. The next prime is 68158609. The reversal of 68158608 is 80685186.

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

It is a self number, because there is not a number n which added to its sum of digits gives 68158608.

It is not an unprimeable number, because it can be changed into a prime (68158609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12138 + ... + 16841.

It is an arithmetic number, because the mean of its divisors is an integer number (3413844).

Almost surely, 2^68158608 is an apocalyptic number.

It is an amenable number.

68158608 is an abundant number, since it is smaller than the sum of its proper divisors (136672032).

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

68158608 is a wasteful number, since it uses less digits than its factorization.

68158608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29004 (or 28991 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 68158608 is about 8255.8226725142. The cubic root of 68158608 is about 408.4826084611.

Adding to 68158608 its sum of digits (42), we get a triangular number (68158650 = T₁₁₆₇₅).

The spelling of 68158608 in words is "sixty-eight million, one hundred fifty-eight thousand, six hundred eight".