159953205643 has 16 divisors (see below), whose sum is σ = 199485411840. Its totient is φ = 124599340800.

The previous prime is 159953205641. The next prime is 159953205661. The reversal of 159953205643 is 346502359951.

It is not a de Polignac number, because 159953205643 - 2¹ = 159953205641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159953205641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83743 + ... + 571768.

It is an arithmetic number, because the mean of its divisors is an integer number (12467838240).

Almost surely, 2^159953205643 is an apocalyptic number.

159953205643 is a deficient number, since it is larger than the sum of its proper divisors (39532206197).

159953205643 is a wasteful number, since it uses less digits than its factorization.

159953205643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658698.

The product of its (nonzero) digits is 4374000, while the sum is 52.

The spelling of 159953205643 in words is "one hundred fifty-nine billion, nine hundred fifty-three million, two hundred five thousand, six hundred forty-three".