158866316187 has 8 divisors (see below), whose sum is σ = 218654714880. Its totient is φ = 102494397480.

The previous prime is 158866316143. The next prime is 158866316207. The reversal of 158866316187 is 781613668851.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 158866316187 - 2¹⁶ = 158866250651 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 158866316187.

It is not an unprimeable number, because it can be changed into a prime (158866316117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 854119887 + ... + 854120072.

It is an arithmetic number, because the mean of its divisors is an integer number (27331839360).

Almost surely, 2^158866316187 is an apocalyptic number.

158866316187 is a deficient number, since it is larger than the sum of its proper divisors (59788398693).

158866316187 is a wasteful number, since it uses less digits than its factorization.

158866316187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708239993.

The product of its digits is 11612160, while the sum is 60.

The spelling of 158866316187 in words is "one hundred fifty-eight billion, eight hundred sixty-six million, three hundred sixteen thousand, one hundred eighty-seven".