159723523361 has 4 divisors (see below), whose sum is σ = 159984084372. Its totient is φ = 159462962352.

The previous prime is 159723523321. The next prime is 159723523381. The reversal of 159723523361 is 163325327951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 163325327951 = 163 ⋅1001995877.

It can be written as a sum of positive squares in 2 ways, for example, as 23311487761 + 136412035600 = 152681^2 + 369340^2 .

It is a cyclic number.

It is not a de Polignac number, because 159723523361 - 2¹⁰ = 159723522337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159723523301) 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, 130279586 + ... + 130280811.

It is an arithmetic number, because the mean of its divisors is an integer number (39996021093).

Almost surely, 2^159723523361 is an apocalyptic number.

It is an amenable number.

159723523361 is a deficient number, since it is larger than the sum of its proper divisors (260561011).

159723523361 is an equidigital number, since it uses as much as digits as its factorization.

159723523361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260561010.

The product of its digits is 1020600, while the sum is 47.

The spelling of 159723523361 in words is "one hundred fifty-nine billion, seven hundred twenty-three million, five hundred twenty-three thousand, three hundred sixty-one".