159998655 has 32 divisors (see below), whose sum is σ = 267471360. Its totient is φ = 81567360.

The previous prime is 159998653. The next prime is 159998659. The reversal of 159998655 is 556899951.

It is not a de Polignac number, because 159998655 - 2¹ = 159998653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 159998595 and 159998604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159998651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43020 + ... + 46590.

It is an arithmetic number, because the mean of its divisors is an integer number (8358480).

Almost surely, 2^159998655 is an apocalyptic number.

159998655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

159998655 is a deficient number, since it is larger than the sum of its proper divisors (107472705).

159998655 is a wasteful number, since it uses less digits than its factorization.

159998655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3711.

The product of its digits is 4374000, while the sum is 57.

The square root of 159998655 is about 12649.0574747686. The cubic root of 159998655 is about 542.8820021098.

The spelling of 159998655 in words is "one hundred fifty-nine million, nine hundred ninety-eight thousand, six hundred fifty-five".