159856988 has 6 divisors (see below), whose sum is σ = 279749736. Its totient is φ = 79928492.

The previous prime is 159856981. The next prime is 159856999. The reversal of 159856988 is 889658951.

159856988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×159856988² = 51108513224864288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159856981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19982120 + ... + 19982127.

It is an arithmetic number, because the mean of its divisors is an integer number (46624956).

Almost surely, 2^159856988 is an apocalyptic number.

It is an amenable number.

159856988 is a deficient number, since it is larger than the sum of its proper divisors (119892748).

159856988 is a wasteful number, since it uses less digits than its factorization.

159856988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39964251 (or 39964249 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 59.

The square root of 159856988 is about 12643.4563312411. The cubic root of 159856988 is about 542.7217274819.

The spelling of 159856988 in words is "one hundred fifty-nine million, eight hundred fifty-six thousand, nine hundred eighty-eight".