159958389081 has 16 divisors (see below), whose sum is σ = 219069091584. Its totient is φ = 103781659344.

The previous prime is 159958389079. The next prime is 159958389131. The reversal of 159958389081 is 180983859951.

It is a happy number.

It is not a de Polignac number, because 159958389081 - 2¹ = 159958389079 is a prime.

It is a super-2 number, since 2×159958389081² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (159958389881) 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, 4777371 + ... + 4810736.

It is an arithmetic number, because the mean of its divisors is an integer number (13691818224).

Almost surely, 2^159958389081 is an apocalyptic number.

It is an amenable number.

159958389081 is a deficient number, since it is larger than the sum of its proper divisors (59110702503).

159958389081 is an equidigital number, since it uses as much as digits as its factorization.

159958389081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9588260.

The product of its (nonzero) digits is 27993600, while the sum is 66.

The spelling of 159958389081 in words is "one hundred fifty-nine billion, nine hundred fifty-eight million, three hundred eighty-nine thousand, eighty-one".