159664736 has 72 divisors (see below), whose sum is σ = 398945736. Its totient is φ = 62200320.

The previous prime is 159664723. The next prime is 159664751. The reversal of 159664736 is 637466951.

159664736 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12620 + ... + 21876.

It is an arithmetic number, because the mean of its divisors is an integer number (5540913).

Almost surely, 2^159664736 is an apocalyptic number.

159664736 is a gapful number since it is divisible by the number (16) 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 159664736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199472868).

159664736 is an abundant number, since it is smaller than the sum of its proper divisors (239281000).

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

159664736 is a wasteful number, since it uses less digits than its factorization.

159664736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9292 (or 9277 counting only the distinct ones).

The product of its digits is 816480, while the sum is 47.

The square root of 159664736 is about 12635.8512178642. The cubic root of 159664736 is about 542.5040721165.

It can be divided in two parts, 15966 and 4736, that added together give a palindrome (20702).

The spelling of 159664736 in words is "one hundred fifty-nine million, six hundred sixty-four thousand, seven hundred thirty-six".