158867856 has 240 divisors, whose sum is σ = 549679104. Its totient is φ = 41803776.

The previous prime is 158867837. The next prime is 158867857. The reversal of 158867856 is 658768851.

158867856 is a `hidden beast` number, since 1 + 588 + 6 + 7 + 8 + 56 = 666.

It is not an unprimeable number, because it can be changed into a prime (158867857) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1250865 + ... + 1250991.

Almost surely, 2^158867856 is an apocalyptic number.

158867856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158867856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274839552).

158867856 is an abundant number, since it is smaller than the sum of its proper divisors (390811248).

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

158867856 is a wasteful number, since it uses less digits than its factorization.

158867856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 229 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 54.

The square root of 158867856 is about 12604.2792733262. The cubic root of 158867856 is about 541.6000280730.

The spelling of 158867856 in words is "one hundred fifty-eight million, eight hundred sixty-seven thousand, eight hundred fifty-six".