159669744 has 120 divisors (see below), whose sum is σ = 460876752. Its totient is φ = 47324160.

The previous prime is 159669739. The next prime is 159669781. The reversal of 159669744 is 447966951.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2021097 + ... + 2021175.

Almost surely, 2^159669744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159669744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230438376).

159669744 is an abundant number, since it is smaller than the sum of its proper divisors (301207008).

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

159669744 is a wasteful number, since it uses less digits than its factorization.

159669744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 138 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The square root of 159669744 is about 12636.0493826196. The cubic root of 159669744 is about 542.5097440682.

It can be divided in two parts, 159 and 669744, that added together give a triangular number (669903 = T₁₁₅₇).

The spelling of 159669744 in words is "one hundred fifty-nine million, six hundred sixty-nine thousand, seven hundred forty-four".