159992322081 has 8 divisors (see below), whose sum is σ = 219088585344. Its totient is φ = 103778803440.

The previous prime is 159992322079. The next prime is 159992322101. The reversal of 159992322081 is 180223299951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 159992322081 - 2¹ = 159992322079 is a prime.

It is a super-2 number, since 2×159992322081² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (159992332081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720686025 + ... + 720686246.

It is an arithmetic number, because the mean of its divisors is an integer number (27386073168).

Almost surely, 2^159992322081 is an apocalyptic number.

It is an amenable number.

159992322081 is a deficient number, since it is larger than the sum of its proper divisors (59096263263).

159992322081 is a wasteful number, since it uses less digits than its factorization.

159992322081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441372311.

The product of its (nonzero) digits is 699840, while the sum is 51.

The spelling of 159992322081 in words is "one hundred fifty-nine billion, nine hundred ninety-two million, three hundred twenty-two thousand, eighty-one".