158635968 has 56 divisors (see below), whose sum is σ = 437985408. Its totient is φ = 50578176.

The previous prime is 158635937. The next prime is 158635969. The reversal of 158635968 is 869536851.

It is a self number, because there is not a number n which added to its sum of digits gives 158635968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158635969) 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 7 ways as a sum of consecutive naturals, for example, 13546 + ... + 22377.

It is an arithmetic number, because the mean of its divisors is an integer number (7821168).

Almost surely, 2^158635968 is an apocalyptic number.

It is an amenable number.

158635968 is an abundant number, since it is smaller than the sum of its proper divisors (279349440).

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

158635968 is a wasteful number, since it uses less digits than its factorization.

158635968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35961 (or 35951 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 51.

The square root of 158635968 is about 12595.0771335471. The cubic root of 158635968 is about 541.3363882043.

The spelling of 158635968 in words is "one hundred fifty-eight million, six hundred thirty-five thousand, nine hundred sixty-eight".