159519987000 has 864 divisors, whose sum is σ = 614792702160. Its totient is φ = 37274688000.

The previous prime is 159519986981. The next prime is 159519987049. The reversal of 159519987000 is 789915951.

159519987000 is a `hidden beast` number, since 1 + 59 + 519 + 9 + 8 + 70 + 0 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 1490840947 + ... + 1490841053.

Almost surely, 2^159519987000 is an apocalyptic number.

159519987000 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 159519987000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307396351080).

159519987000 is an abundant number, since it is smaller than the sum of its proper divisors (455272715160).

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

159519987000 is a wasteful number, since it uses less digits than its factorization.

159519987000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 1020600, while the sum is 54.

The spelling of 159519987000 in words is "one hundred fifty-nine billion, five hundred nineteen million, nine hundred eighty-seven thousand".