158536717986 has 32 divisors (see below), whose sum is σ = 331760867328. Its totient is φ = 50410190160.

The previous prime is 158536717951. The next prime is 158536717993. The reversal of 158536717986 is 689717635851.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1514500 + ... + 1615791.

It is an arithmetic number, because the mean of its divisors is an integer number (10367527104).

Almost surely, 2^158536717986 is an apocalyptic number.

158536717986 is an abundant number, since it is smaller than the sum of its proper divisors (173224149342).

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

158536717986 is a wasteful number, since it uses less digits than its factorization.

158536717986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3130686.

The product of its digits is 76204800, while the sum is 66.

The spelling of 158536717986 in words is "one hundred fifty-eight billion, five hundred thirty-six million, seven hundred seventeen thousand, nine hundred eighty-six".