158543413281 has 24 divisors (see below), whose sum is σ = 249865543200. Its totient is φ = 96071702400.

The previous prime is 158543413277. The next prime is 158543413313. The reversal of 158543413281 is 182314345851.

158543413281 is a `hidden beast` number, since 1 + 5 + 8 + 5 + 434 + 132 + 81 = 666.

It is not a de Polignac number, because 158543413281 - 2² = 158543413277 is a prime.

It is a super-2 number, since 2×158543413281² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (158543413241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 518070 + ... + 765168.

It is an arithmetic number, because the mean of its divisors is an integer number (10411064300).

Almost surely, 2^158543413281 is an apocalyptic number.

158543413281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

158543413281 is a deficient number, since it is larger than the sum of its proper divisors (91322129919).

158543413281 is a wasteful number, since it uses less digits than its factorization.

158543413281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253597 (or 253594 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The spelling of 158543413281 in words is "one hundred fifty-eight billion, five hundred forty-three million, four hundred thirteen thousand, two hundred eighty-one".