158315816187 has 12 divisors (see below), whose sum is σ = 233543899680. Its totient is φ = 103298262768.

The previous prime is 158315816111. The next prime is 158315816227. The reversal of 158315816187 is 781618513851.

158315816187 is a `hidden beast` number, since 1 + 5 + 8 + 3 + 15 + 8 + 1 + 618 + 7 = 666.

It is not a de Polignac number, because 158315816187 - 2¹⁵ = 158315783419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158315816287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187134112 + ... + 187134957.

It is an arithmetic number, because the mean of its divisors is an integer number (19461991640).

Almost surely, 2^158315816187 is an apocalyptic number.

158315816187 is a deficient number, since it is larger than the sum of its proper divisors (75228083493).

158315816187 is a wasteful number, since it uses less digits than its factorization.

158315816187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374269122 (or 374269119 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 54.

The spelling of 158315816187 in words is "one hundred fifty-eight billion, three hundred fifteen million, eight hundred sixteen thousand, one hundred eighty-seven".