159231607155 has 24 divisors (see below), whose sum is σ = 276017698320. Its totient is φ = 84918525120.

The previous prime is 159231607121. The next prime is 159231607247. The reversal of 159231607155 is 551706132951.

159231607155 is a `hidden beast` number, since 1 + 5 + 9 + 2 + 31 + 607 + 1 + 5 + 5 = 666.

It is not a de Polignac number, because 159231607155 - 2¹⁵ = 159231574387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 159231607155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 744936 + ... + 934554.

It is an arithmetic number, because the mean of its divisors is an integer number (11500737430).

Almost surely, 2^159231607155 is an apocalyptic number.

159231607155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

159231607155 is a deficient number, since it is larger than the sum of its proper divisors (116786091165).

159231607155 is a wasteful number, since it uses less digits than its factorization.

159231607155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208291 (or 208288 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 45.

The spelling of 159231607155 in words is "one hundred fifty-nine billion, two hundred thirty-one million, six hundred seven thousand, one hundred fifty-five".