159540346836 has 36 divisors (see below), whose sum is σ = 434304278772. Its totient is φ = 49089337344.

The previous prime is 159540346817. The next prime is 159540346871. The reversal of 159540346836 is 638643045951.

159540346836 is a `hidden beast` number, since 1 + 5 + 9 + 540 + 3 + 4 + 68 + 36 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 28423936836 + 131116410000 = 168594^2 + 362100^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170448621 + ... + 170449556.

Almost surely, 2^159540346836 is an apocalyptic number.

It is an amenable number.

159540346836 is an abundant number, since it is smaller than the sum of its proper divisors (274763931936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

159540346836 is a wasteful number, since it uses less digits than its factorization.

159540346836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340898200 (or 340898195 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 54.

The spelling of 159540346836 in words is "one hundred fifty-nine billion, five hundred forty million, three hundred forty-six thousand, eight hundred thirty-six".