159503585641 has 3 divisors (see below), whose sum is σ = 159503985021. Its totient is φ = 159503186262.

The previous prime is 159503585639. The next prime is 159503585651. The reversal of 159503585641 is 146585305951.

The square root of 159503585641 is 399379.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 146585305951 = 7 ⋅20940757993.

It is not a de Polignac number, because 159503585641 - 2¹ = 159503585639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159503585611) 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 2 ways as a sum of consecutive naturals, for example, 199690 + ... + 599068.

It is an arithmetic number, because the mean of its divisors is an integer number (53167995007).

Almost surely, 2^159503585641 is an apocalyptic number.

159503585641 is the 399379-th square number.

159503585641 is the 199690-th centered octagonal number.

It is an amenable number.

159503585641 is a deficient number, since it is larger than the sum of its proper divisors (399380).

159503585641 is an frugal number, since it uses more digits than its factorization.

159503585641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798758 (or 399379 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 52.

The spelling of 159503585641 in words is "one hundred fifty-nine billion, five hundred three million, five hundred eighty-five thousand, six hundred forty-one".