159727680 has 448 divisors, whose sum is σ = 682752000. Its totient is φ = 34338816.

The previous prime is 159727643. The next prime is 159727681. The reversal of 159727680 is 86727951.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (159727681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1149051 + ... + 1149189.

It is an arithmetic number, because the mean of its divisors is an integer number (1524000).

Almost surely, 2^159727680 is an apocalyptic number.

159727680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159727680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341376000).

159727680 is an abundant number, since it is smaller than the sum of its proper divisors (523024320).

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

159727680 is a wasteful number, since it uses less digits than its factorization.

159727680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The square root of 159727680 is about 12638.3416633671. The cubic root of 159727680 is about 542.5753524983.

The spelling of 159727680 in words is "one hundred fifty-nine million, seven hundred twenty-seven thousand, six hundred eighty".