159797398806 has 32 divisors (see below), whose sum is σ = 355929292800. Its totient is φ = 53142205320.

The previous prime is 159797398753. The next prime is 159797398823. The reversal of 159797398806 is 608893797951.

159797398806 is a `hidden beast` number, since 159 + 7 + 9 + 7 + 398 + 80 + 6 = 666.

It is a super-3 number, since 3×159797398806³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3409686 + ... + 3456233.

It is an arithmetic number, because the mean of its divisors is an integer number (11122790400).

Almost surely, 2^159797398806 is an apocalyptic number.

159797398806 is an abundant number, since it is smaller than the sum of its proper divisors (196131893994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

159797398806 is a wasteful number, since it uses less digits than its factorization.

159797398806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6866361 (or 6866355 counting only the distinct ones).

The product of its (nonzero) digits is 205752960, while the sum is 72.

The spelling of 159797398806 in words is "one hundred fifty-nine billion, seven hundred ninety-seven million, three hundred ninety-eight thousand, eight hundred six".