159993688387 has 16 divisors (see below), whose sum is σ = 172757914560. Its totient is φ = 147295245312.

The previous prime is 159993688381. The next prime is 159993688409. The reversal of 159993688387 is 783886399951.

It is a cyclic number.

It is not a de Polignac number, because 159993688387 - 2¹¹ = 159993686339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159993688381) by changing a digit.

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, 8447314 + ... + 8466232.

It is an arithmetic number, because the mean of its divisors is an integer number (10797369660).

Almost surely, 2^159993688387 is an apocalyptic number.

159993688387 is a deficient number, since it is larger than the sum of its proper divisors (12764226173).

159993688387 is a wasteful number, since it uses less digits than its factorization.

159993688387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20622.

The product of its digits is 705438720, while the sum is 76.

The spelling of 159993688387 in words is "one hundred fifty-nine billion, nine hundred ninety-three million, six hundred eighty-eight thousand, three hundred eighty-seven".