68820158 has 16 divisors (see below), whose sum is σ = 114203520. Its totient is φ = 30840600.

The previous prime is 68820149. The next prime is 68820187. The reversal of 68820158 is 85102886.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20468 + ... + 23591.

It is an arithmetic number, because the mean of its divisors is an integer number (7137720).

Almost surely, 2^68820158 is an apocalyptic number.

68820158 is a deficient number, since it is larger than the sum of its proper divisors (45383362).

68820158 is a wasteful number, since it uses less digits than its factorization.

68820158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44143.

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 68820158 is about 8295.7915836887. The cubic root of 68820158 is about 409.7999380875.

The spelling of 68820158 in words is "sixty-eight million, eight hundred twenty thousand, one hundred fifty-eight".