159213421217 has 16 divisors (see below), whose sum is σ = 167837140800. Its totient is φ = 150809252160.

The previous prime is 159213421187. The next prime is 159213421261. The reversal of 159213421217 is 712124312951.

It is not a de Polignac number, because 159213421217 - 2¹⁸ = 159213159073 is a prime.

It is a super-2 number, since 2×159213421217² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159213421267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 745343 + ... + 934859.

It is an arithmetic number, because the mean of its divisors is an integer number (10489821300).

Almost surely, 2^159213421217 is an apocalyptic number.

It is an amenable number.

159213421217 is a deficient number, since it is larger than the sum of its proper divisors (8623719583).

159213421217 is a wasteful number, since it uses less digits than its factorization.

159213421217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190096.

The product of its digits is 30240, while the sum is 38.

The spelling of 159213421217 in words is "one hundred fifty-nine billion, two hundred thirteen million, four hundred twenty-one thousand, two hundred seventeen".