158585858508 has 288 divisors, whose sum is σ = 507667426560. Its totient is φ = 37967408640.

The previous prime is 158585858479. The next prime is 158585858551. The reversal of 158585858508 is 805858585851.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4529566 + ... + 4564442.

It is an arithmetic number, because the mean of its divisors is an integer number (1762734120).

Almost surely, 2^158585858508 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158585858508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253833713280).

158585858508 is an abundant number, since it is smaller than the sum of its proper divisors (349081568052).

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

158585858508 is a wasteful number, since it uses less digits than its factorization.

158585858508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34965 (or 34956 counting only the distinct ones).

The product of its (nonzero) digits is 102400000, while the sum is 66.

The spelling of 158585858508 in words is "one hundred fifty-eight billion, five hundred eighty-five million, eight hundred fifty-eight thousand, five hundred eight".