159674452681 has 2 divisors, whose sum is σ = 159674452682. Its totient is φ = 159674452680.

The previous prime is 159674452673. The next prime is 159674452699. The reversal of 159674452681 is 186254476951.

159674452681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135215056656 + 24459396025 = 367716^2 + 156395^2 .

It is a cyclic number.

It is not a de Polignac number, because 159674452681 - 2³ = 159674452673 is a prime.

It is a super-2 number, since 2×159674452681² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (159674452601) by changing a digit.

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 as a sum of consecutive naturals, namely, 79837226340 + 79837226341.

It is an arithmetic number, because the mean of its divisors is an integer number (79837226341).

Almost surely, 2^159674452681 is an apocalyptic number.

It is an amenable number.

159674452681 is a deficient number, since it is larger than the sum of its proper divisors (1).

159674452681 is an equidigital number, since it uses as much as digits as its factorization.

159674452681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14515200, while the sum is 58.

The spelling of 159674452681 in words is "one hundred fifty-nine billion, six hundred seventy-four million, four hundred fifty-two thousand, six hundred eighty-one".