159979677 has 48 divisors (see below), whose sum is σ = 264737088. Its totient is φ = 84706560.

The previous prime is 159979667. The next prime is 159979679. The reversal of 159979677 is 776979951.

It is not a de Polignac number, because 159979677 - 2⁶ = 159979613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 159979677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159979679) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 154353 + ... + 155385.

It is an arithmetic number, because the mean of its divisors is an integer number (5515356).

Almost surely, 2^159979677 is an apocalyptic number.

It is an amenable number.

159979677 is a deficient number, since it is larger than the sum of its proper divisors (104757411).

159979677 is a wasteful number, since it uses less digits than its factorization.

159979677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098 (or 1079 counting only the distinct ones).

The product of its digits is 7501410, while the sum is 60.

The square root of 159979677 is about 12648.3072780511. The cubic root of 159979677 is about 542.8605368835.

The spelling of 159979677 in words is "one hundred fifty-nine million, nine hundred seventy-nine thousand, six hundred seventy-seven".