159189297140 has 24 divisors (see below), whose sum is σ = 351892131360. Its totient is φ = 60324365088.

The previous prime is 159189297139. The next prime is 159189297233. The reversal of 159189297140 is 41792981951.

It is a happy number.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209459222 + ... + 209459981.

It is an arithmetic number, because the mean of its divisors is an integer number (14662172140).

Almost surely, 2^159189297140 is an apocalyptic number.

159189297140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159189297140 is an abundant number, since it is smaller than the sum of its proper divisors (192702834220).

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

159189297140 is a wasteful number, since it uses less digits than its factorization.

159189297140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418919231 (or 418919229 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 56.

The spelling of 159189297140 in words is "one hundred fifty-nine billion, one hundred eighty-nine million, two hundred ninety-seven thousand, one hundred forty".