159502081639 has 4 divisors (see below), whose sum is σ = 159525302320. Its totient is φ = 159478860960.

The previous prime is 159502081637. The next prime is 159502081663. The reversal of 159502081639 is 936180205951.

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 159502081639 - 2¹ = 159502081637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 159502081592 and 159502081601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159502081637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11600034 + ... + 11613775.

It is an arithmetic number, because the mean of its divisors is an integer number (39881325580).

Almost surely, 2^159502081639 is an apocalyptic number.

159502081639 is a deficient number, since it is larger than the sum of its proper divisors (23220681).

159502081639 is an equidigital number, since it uses as much as digits as its factorization.

159502081639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23220680.

The product of its (nonzero) digits is 583200, while the sum is 49.

The spelling of 159502081639 in words is "one hundred fifty-nine billion, five hundred two million, eighty-one thousand, six hundred thirty-nine".