159261398065 has 32 divisors (see below), whose sum is σ = 238533672960. Its totient is φ = 99170635200.

The previous prime is 159261398041. The next prime is 159261398069. The reversal of 159261398065 is 560893162951.

It is not a de Polignac number, because 159261398065 - 2⁹ = 159261397553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a junction number, because it is equal to n+sod(n) for n = 159261397997 and 159261398015.

It is not an unprimeable number, because it can be changed into a prime (159261398069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123696 + ... + 577774.

It is an arithmetic number, because the mean of its divisors is an integer number (7454177280).

Almost surely, 2^159261398065 is an apocalyptic number.

It is an amenable number.

159261398065 is a deficient number, since it is larger than the sum of its proper divisors (79272274895).

159261398065 is a wasteful number, since it uses less digits than its factorization.

159261398065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455013.

The product of its (nonzero) digits is 3499200, while the sum is 55.

The spelling of 159261398065 in words is "one hundred fifty-nine billion, two hundred sixty-one million, three hundred ninety-eight thousand, sixty-five".