159957573433023 has 16 divisors (see below), whose sum is σ = 213545724254720. Its totient is φ = 106503986169504.

The previous prime is 159957573432997. The next prime is 159957573433027. The reversal of 159957573433023 is 320334375759951.

It is a happy number.

It is not a de Polignac number, because 159957573433023 - 2²¹ = 159957571335871 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 (159957573433027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2819611 + ... + 18107052.

It is an arithmetic number, because the mean of its divisors is an integer number (13346607765920).

Almost surely, 2^{159957573433023} is an apocalyptic number.

159957573433023 is a deficient number, since it is larger than the sum of its proper divisors (53588150821697).

159957573433023 is a wasteful number, since it uses less digits than its factorization.

159957573433023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20929878.

The product of its (nonzero) digits is 321489000, while the sum is 66.

The spelling of 159957573433023 in words is "one hundred fifty-nine trillion, nine hundred fifty-seven billion, five hundred seventy-three million, four hundred thirty-three thousand, twenty-three".