158378668 has 12 divisors (see below), whose sum is σ = 316757392. Its totient is φ = 67876560.

The previous prime is 158378651. The next prime is 158378669. The reversal of 158378668 is 866873851.

158378668 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (158378669) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2828163 + ... + 2828218.

Almost surely, 2^158378668 is an apocalyptic number.

It is an amenable number.

158378668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

158378668 is a wasteful number, since it uses less digits than its factorization.

158378668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5656392 (or 5656390 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 52.

The square root of 158378668 is about 12584.8586801760. The cubic root of 158378668 is about 541.0435558633.

The spelling of 158378668 in words is "one hundred fifty-eight million, three hundred seventy-eight thousand, six hundred sixty-eight".