159955956 has 18 divisors (see below), whose sum is σ = 404333202. Its totient is φ = 53318640.

The previous prime is 159955951. The next prime is 159955987. The reversal of 159955956 is 659559951.

It can be written as a sum of positive squares in only one way, i.e., 80460900 + 79495056 = 8970^2 + 8916^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159955951) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2221575 + ... + 2221646.

Almost surely, 2^159955956 is an apocalyptic number.

It is an amenable number.

159955956 is an abundant number, since it is smaller than the sum of its proper divisors (244377246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

159955956 is a wasteful number, since it uses less digits than its factorization.

159955956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4443231 (or 4443226 counting only the distinct ones).

The product of its digits is 2733750, while the sum is 54.

The square root of 159955956 is about 12647.3695288783. The cubic root of 159955956 is about 542.8337046601.

The spelling of 159955956 in words is "one hundred fifty-nine million, nine hundred fifty-five thousand, nine hundred fifty-six".