159191234280 has 448 divisors, whose sum is σ = 580222460160. Its totient is φ = 39057790464.

The previous prime is 159191234269. The next prime is 159191234281. The reversal of 159191234280 is 82432191951.

159191234280 is a `hidden beast` number, since 1 + 59 + 1 + 91 + 234 + 280 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (159191234281) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 175513587 + ... + 175514493.

It is an arithmetic number, because the mean of its divisors is an integer number (1295139420).

Almost surely, 2^159191234280 is an apocalyptic number.

159191234280 is a gapful number since it is divisible by the number (10) 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 159191234280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290111230080).

159191234280 is an abundant number, since it is smaller than the sum of its proper divisors (421031225880).

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

159191234280 is a wasteful number, since it uses less digits than its factorization.

159191234280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412 (or 1393 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 159191234280 in words is "one hundred fifty-nine billion, one hundred ninety-one million, two hundred thirty-four thousand, two hundred eighty".