158327687500 has 168 divisors, whose sum is σ = 366025314816. Its totient is φ = 59802600000.

The previous prime is 158327687491. The next prime is 158327687501. The reversal of 158327687500 is 5786723851.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (158327687501) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 119311837 + ... + 119313163.

It is an arithmetic number, because the mean of its divisors is an integer number (2178722112).

Almost surely, 2^158327687500 is an apocalyptic number.

158327687500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158327687500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183012657408).

158327687500 is an abundant number, since it is smaller than the sum of its proper divisors (207697627316).

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

158327687500 is an equidigital number, since it uses as much as digits as its factorization.

158327687500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467 (or 1440 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 52.

The spelling of 158327687500 in words is "one hundred fifty-eight billion, three hundred twenty-seven million, six hundred eighty-seven thousand, five hundred".