158681281275 has 36 divisors (see below), whose sum is σ = 310053611400. Its totient is φ = 76936377600.

The previous prime is 158681281229. The next prime is 158681281307. The reversal of 158681281275 is 572182186851.

It is a happy number.

158681281275 is a `hidden beast` number, since 15 + 8 + 6 + 81 + 281 + 275 = 666.

158681281275 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 158681281275 - 2¹³ = 158681273083 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 32054350 + ... + 32059299.

Almost surely, 2^158681281275 is an apocalyptic number.

158681281275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

158681281275 is a deficient number, since it is larger than the sum of its proper divisors (151372330125).

158681281275 is a wasteful number, since it uses less digits than its factorization.

158681281275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64113676 (or 64113668 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 54.

The spelling of 158681281275 in words is "one hundred fifty-eight billion, six hundred eighty-one million, two hundred eighty-one thousand, two hundred seventy-five".