158891368 has 16 divisors (see below), whose sum is σ = 307532160. Its totient is φ = 76882800.

The previous prime is 158891363. The next prime is 158891389. The reversal of 158891368 is 863198851.

It is a super-2 number, since 2×158891368² = 50492933649822848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (158891363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320098 + ... + 320593.

It is an arithmetic number, because the mean of its divisors is an integer number (19220760).

Almost surely, 2^158891368 is an apocalyptic number.

It is an amenable number.

158891368 is a deficient number, since it is larger than the sum of its proper divisors (148640792).

158891368 is a wasteful number, since it uses less digits than its factorization.

158891368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640728 (or 640724 counting only the distinct ones).

The product of its digits is 414720, while the sum is 49.

The square root of 158891368 is about 12605.2119379247. The cubic root of 158891368 is about 541.6267451867.

The spelling of 158891368 in words is "one hundred fifty-eight million, eight hundred ninety-one thousand, three hundred sixty-eight".