158585885873 has 4 divisors (see below), whose sum is σ = 158864596260. Its totient is φ = 158307175488.

The previous prime is 158585885869. The next prime is 158585885879. The reversal of 158585885873 is 378588585851.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46234890529 + 112350995344 = 215023^2 + 335188^2 .

It is a cyclic number.

It is not a de Polignac number, because 158585885873 - 2² = 158585885869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 158585885797 and 158585885806.

It is not an unprimeable number, because it can be changed into a prime (158585885879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139354340 + ... + 139355477.

It is an arithmetic number, because the mean of its divisors is an integer number (39716149065).

Almost surely, 2^158585885873 is an apocalyptic number.

It is an amenable number.

158585885873 is a deficient number, since it is larger than the sum of its proper divisors (278710387).

158585885873 is an equidigital number, since it uses as much as digits as its factorization.

158585885873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278710386.

The product of its digits is 430080000, while the sum is 71.

The spelling of 158585885873 in words is "one hundred fifty-eight billion, five hundred eighty-five million, eight hundred eighty-five thousand, eight hundred seventy-three".