159718278665127 has 128 divisors (see below), whose sum is σ = 264209384355840. Its totient is φ = 84069354470400.

The previous prime is 159718278665117. The next prime is 159718278665129. The reversal of 159718278665127 is 721566872817951.

It is not a de Polignac number, because 159718278665127 - 2¹⁸ = 159718278402983 is a prime.

It is a super-2 number, since 2×159718278665127² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (75) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159718278665129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 66743951443 + ... + 66743953835.

It is an arithmetic number, because the mean of its divisors is an integer number (2064135815280).

Almost surely, 2^{159718278665127} is an apocalyptic number.

159718278665127 is a deficient number, since it is larger than the sum of its proper divisors (104491105690713).

159718278665127 is a wasteful number, since it uses less digits than its factorization.

159718278665127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4890 (or 4864 counting only the distinct ones).

The product of its digits is 711244800, while the sum is 75.

The spelling of 159718278665127 in words is "one hundred fifty-nine trillion, seven hundred eighteen billion, two hundred seventy-eight million, six hundred sixty-five thousand, one hundred twenty-seven".