159636421239 has 4 divisors (see below), whose sum is σ = 212848561656. Its totient is φ = 106424280824.

The previous prime is 159636421237. The next prime is 159636421261. The reversal of 159636421239 is 932124636951.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 159636421239 - 2¹ = 159636421237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 159636421191 and 159636421200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159636421237) 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, 26606070204 + ... + 26606070209.

It is an arithmetic number, because the mean of its divisors is an integer number (53212140414).

Almost surely, 2^159636421239 is an apocalyptic number.

159636421239 is a deficient number, since it is larger than the sum of its proper divisors (53212140417).

159636421239 is an equidigital number, since it uses as much as digits as its factorization.

159636421239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53212140416.

The product of its digits is 2099520, while the sum is 51.

The spelling of 159636421239 in words is "one hundred fifty-nine billion, six hundred thirty-six million, four hundred twenty-one thousand, two hundred thirty-nine".