159536336401 has 4 divisors (see below), whose sum is σ = 171808362292. Its totient is φ = 147264310512.

The previous prime is 159536336389. The next prime is 159536336417. The reversal of 159536336401 is 104633635951.

It is a Cunningham number, because it is equal to 399420²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104633635951 = 13 ⋅8048741227.

It can be written as a sum of positive squares in 2 ways, for example, as 23600333376 + 135936003025 = 153624^2 + 368695^2 .

It is a cyclic number.

It is not a de Polignac number, because 159536336401 - 2¹⁷ = 159536205329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159536336431) 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, 6136012926 + ... + 6136012951.

It is an arithmetic number, because the mean of its divisors is an integer number (42952090573).

Almost surely, 2^159536336401 is an apocalyptic number.

It is an amenable number.

159536336401 is a deficient number, since it is larger than the sum of its proper divisors (12272025891).

159536336401 is a wasteful number, since it uses less digits than its factorization.

159536336401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12272025890.

The product of its (nonzero) digits is 874800, while the sum is 46.

The spelling of 159536336401 in words is "one hundred fifty-nine billion, five hundred thirty-six million, three hundred thirty-six thousand, four hundred one".