159966280243 has 16 divisors (see below), whose sum is σ = 199479237120. Its totient is φ = 124623576000.

The previous prime is 159966280181. The next prime is 159966280261. The reversal of 159966280243 is 342082669951.

It is a de Polignac number, because none of the positive numbers 2^k-159966280243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159966280283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171423 + ... + 591031.

It is an arithmetic number, because the mean of its divisors is an integer number (12467452320).

Almost surely, 2^159966280243 is an apocalyptic number.

159966280243 is a deficient number, since it is larger than the sum of its proper divisors (39512956877).

159966280243 is a wasteful number, since it uses less digits than its factorization.

159966280243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424578.

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 159966280243 in words is "one hundred fifty-nine billion, nine hundred sixty-six million, two hundred eighty thousand, two hundred forty-three".