159553497168 has 160 divisors (see below), whose sum is σ = 497733420800. Its totient is φ = 48642799104.

The previous prime is 159553497167. The next prime is 159553497211. The reversal of 159553497168 is 861794355951.

159553497168 is a `hidden beast` number, since 1 + 5 + 9 + 5 + 534 + 97 + 1 + 6 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159553497167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 481821 + ... + 742467.

It is an arithmetic number, because the mean of its divisors is an integer number (3110833880).

Almost surely, 2^159553497168 is an apocalyptic number.

159553497168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159553497168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248866710400).

159553497168 is an abundant number, since it is smaller than the sum of its proper divisors (338179923632).

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

159553497168 is a wasteful number, since it uses less digits than its factorization.

159553497168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260786 (or 260774 counting only the distinct ones).

The product of its digits is 40824000, while the sum is 63.

The spelling of 159553497168 in words is "one hundred fifty-nine billion, five hundred fifty-three million, four hundred ninety-seven thousand, one hundred sixty-eight".