159806603728 has 20 divisors (see below), whose sum is σ = 309636343588. Its totient is φ = 79900450560.

The previous prime is 159806603707. The next prime is 159806603741. The reversal of 159806603728 is 827306608951.

It can be written as a sum of positive squares in 2 ways, for example, as 86111728704 + 73694875024 = 293448^2 + 271468^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 327700 + ... + 653452.

Almost surely, 2^159806603728 is an apocalyptic number.

It is an amenable number.

159806603728 is a deficient number, since it is larger than the sum of its proper divisors (149829739860).

159806603728 is a wasteful number, since it uses less digits than its factorization.

159806603728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356422 (or 356416 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 159806603728 in words is "one hundred fifty-nine billion, eight hundred six million, six hundred three thousand, seven hundred twenty-eight".