159788784640 has 88 divisors (see below), whose sum is σ = 387925004880. Its totient is φ = 63145279488.

The previous prime is 159788784629. The next prime is 159788784643. The reversal of 159788784640 is 46487887951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159788784643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236956 + ... + 612964.

Almost surely, 2^159788784640 is an apocalyptic number.

159788784640 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 159788784640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193962502440).

159788784640 is an abundant number, since it is smaller than the sum of its proper divisors (228136220240).

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

159788784640 is an equidigital number, since it uses as much as digits as its factorization.

159788784640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376117 (or 376099 counting only the distinct ones).

The product of its (nonzero) digits is 108380160, while the sum is 67.

The spelling of 159788784640 in words is "one hundred fifty-nine billion, seven hundred eighty-eight million, seven hundred eighty-four thousand, six hundred forty".