159438666625 has 16 divisors (see below), whose sum is σ = 227405093760. Its totient is φ = 109329370800.

The previous prime is 159438666623. The next prime is 159438666641. The reversal of 159438666625 is 526666834951.

159438666625 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 159438666625 - 2¹ = 159438666623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159438666623) 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 in 15 ways as a sum of consecutive naturals, for example, 91106935 + ... + 91108684.

It is an arithmetic number, because the mean of its divisors is an integer number (14212818360).

Almost surely, 2^159438666625 is an apocalyptic number.

It is an amenable number.

159438666625 is a deficient number, since it is larger than the sum of its proper divisors (67966427135).

159438666625 is an equidigital number, since it uses as much as digits as its factorization.

159438666625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182215641 (or 182215631 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 61.

The spelling of 159438666625 in words is "one hundred fifty-nine billion, four hundred thirty-eight million, six hundred sixty-six thousand, six hundred twenty-five".