158205871986 has 16 divisors (see below), whose sum is σ = 324963413184. Its totient is φ = 51310012464.

The previous prime is 158205871981. The next prime is 158205872021. The reversal of 158205871986 is 689178502851.

158205871986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (158205871981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356319310 + ... + 356319753.

It is an arithmetic number, because the mean of its divisors is an integer number (20310213324).

Almost surely, 2^158205871986 is an apocalyptic number.

158205871986 is an abundant number, since it is smaller than the sum of its proper divisors (166757541198).

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

158205871986 is a wasteful number, since it uses less digits than its factorization.

158205871986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712639105.

The product of its (nonzero) digits is 9676800, while the sum is 60.

The spelling of 158205871986 in words is "one hundred fifty-eight billion, two hundred five million, eight hundred seventy-one thousand, nine hundred eighty-six".