159946659 has 24 divisors (see below), whose sum is σ = 245110320. Its totient is φ = 100159488.

The previous prime is 159946643. The next prime is 159946663. The reversal of 159946659 is 956649951.

159946659 is a `hidden beast` number, since 1 + 599 + 46 + 6 + 5 + 9 = 666.

It is not a de Polignac number, because 159946659 - 2⁴ = 159946643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159946679) by changing a digit.

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, 130819 + ... + 132035.

It is an arithmetic number, because the mean of its divisors is an integer number (10212930).

Almost surely, 2^159946659 is an apocalyptic number.

159946659 is a deficient number, since it is larger than the sum of its proper divisors (85163661).

159946659 is a wasteful number, since it uses less digits than its factorization.

159946659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099 (or 2096 counting only the distinct ones).

The product of its digits is 2624400, while the sum is 54.

The square root of 159946659 is about 12647.0019767532. The cubic root of 159946659 is about 542.8231875510.

The spelling of 159946659 in words is "one hundred fifty-nine million, nine hundred forty-six thousand, six hundred fifty-nine".