159431336946 has 72 divisors (see below), whose sum is σ = 425469262140. Its totient is φ = 42872288256.

The previous prime is 159431336927. The next prime is 159431336947. The reversal of 159431336946 is 649633134951.

It is a happy number.

159431336946 is a `hidden beast` number, since 1 + 594 + 3 + 1 + 3 + 3 + 6 + 9 + 46 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 129481227225 + 29950109721 = 359835^2 + 173061^2 .

It is a junction number, because it is equal to n+sod(n) for n = 159431336892 and 159431336901.

It is not an unprimeable number, because it can be changed into a prime (159431336947) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5301511 + ... + 5331498.

Almost surely, 2^159431336946 is an apocalyptic number.

159431336946 is an abundant number, since it is smaller than the sum of its proper divisors (266037925194).

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

159431336946 is a wasteful number, since it uses less digits than its factorization.

159431336946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10633048 (or 10633038 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 54.

The spelling of 159431336946 in words is "one hundred fifty-nine billion, four hundred thirty-one million, three hundred thirty-six thousand, nine hundred forty-six".