159257663041 has 3 divisors (see below), whose sum is σ = 159258062113. Its totient is φ = 159257263970.

The previous prime is 159257663029. The next prime is 159257663063. The reversal of 159257663041 is 140366752951.

The square root of 159257663041 is 399071.

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.

It is a de Polignac number, because none of the positive numbers 2^k-159257663041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159257663441) 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, 199536 + ... + 598606.

Almost surely, 2^159257663041 is an apocalyptic number.

159257663041 is the 399071-st square number.

159257663041 is the 199536-th centered octagonal number.

It is an amenable number.

159257663041 is a deficient number, since it is larger than the sum of its proper divisors (399072).

159257663041 is an frugal number, since it uses more digits than its factorization.

159257663041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798142 (or 399071 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 49.

Multiplying 159257663041 by its sum of digits (49), we get a square (7803625489009 = 2793497²).

The spelling of 159257663041 in words is "one hundred fifty-nine billion, two hundred fifty-seven million, six hundred sixty-three thousand, forty-one".