159249830502991 has 4 divisors (see below), whose sum is σ = 159250516917184. Its totient is φ = 159249144088800.

The previous prime is 159249830502947. The next prime is 159249830503033. The reversal of 159249830502991 is 199205038942951.

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 159249830502991 - 2¹⁵ = 159249830470223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159249830502491) 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, 342858975 + ... + 343323136.

It is an arithmetic number, because the mean of its divisors is an integer number (39812629229296).

Almost surely, 2^{159249830502991} is an apocalyptic number.

159249830502991 is a deficient number, since it is larger than the sum of its proper divisors (686414193).

159249830502991 is an equidigital number, since it uses as much as digits as its factorization.

159249830502991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686414192.

The product of its (nonzero) digits is 62985600, while the sum is 67.

The spelling of 159249830502991 in words is "one hundred fifty-nine trillion, two hundred forty-nine billion, eight hundred thirty million, five hundred two thousand, nine hundred ninety-one".