159193681140 has 96 divisors (see below), whose sum is σ = 483694839936. Its totient is φ = 38886981120.

The previous prime is 159193681123. The next prime is 159193681169. The reversal of 159193681140 is 41186391951.

It is a super-2 number, since 2×159193681140² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 159193681140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 676807 + ... + 881166.

It is an arithmetic number, because the mean of its divisors is an integer number (5038487916).

Almost surely, 2^159193681140 is an apocalyptic number.

159193681140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159193681140 is an abundant number, since it is smaller than the sum of its proper divisors (324501158796).

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

159193681140 is a wasteful number, since it uses less digits than its factorization.

159193681140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558129 (or 1558127 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 48.

The spelling of 159193681140 in words is "one hundred fifty-nine billion, one hundred ninety-three million, six hundred eighty-one thousand, one hundred forty".