68158318 has 16 divisors (see below), whose sum is σ = 106713936. Its totient is φ = 32618560.

The previous prime is 68158309. The next prime is 68158357. The reversal of 68158318 is 81385186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3496 + ... + 12187.

It is an arithmetic number, because the mean of its divisors is an integer number (6669621).

Almost surely, 2^68158318 is an apocalyptic number.

68158318 is a deficient number, since it is larger than the sum of its proper divisors (38555618).

68158318 is a wasteful number, since it uses less digits than its factorization.

68158318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15779.

The product of its digits is 46080, while the sum is 40.

The square root of 68158318 is about 8255.8051091338. The cubic root of 68158318 is about 408.4820291255.

The spelling of 68158318 in words is "sixty-eight million, one hundred fifty-eight thousand, three hundred eighteen".