159126398161 has 4 divisors (see below), whose sum is σ = 160671314752. Its totient is φ = 157581481572.

The previous prime is 159126398159. The next prime is 159126398177. The reversal of 159126398161 is 161893621951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 159126398161 - 2¹ = 159126398159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 159126398099 and 159126398108.

It is not an unprimeable number, because it can be changed into a prime (159126395161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 772458141 + ... + 772458346.

It is an arithmetic number, because the mean of its divisors is an integer number (40167828688).

Almost surely, 2^159126398161 is an apocalyptic number.

It is an amenable number.

159126398161 is a deficient number, since it is larger than the sum of its proper divisors (1544916591).

159126398161 is a wasteful number, since it uses less digits than its factorization.

159126398161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544916590.

The product of its digits is 699840, while the sum is 52.

The spelling of 159126398161 in words is "one hundred fifty-nine billion, one hundred twenty-six million, three hundred ninety-eight thousand, one hundred sixty-one".