159488317440 has 384 divisors, whose sum is σ = 569080512000. Its totient is φ = 42369122304.

The previous prime is 159488317403. The next prime is 159488317447. The reversal of 159488317440 is 44713884951.

159488317440 is a `hidden beast` number, since 1 + 5 + 94 + 88 + 31 + 7 + 440 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159488317447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84878421 + ... + 84880299.

It is an arithmetic number, because the mean of its divisors is an integer number (1481980500).

Almost surely, 2^159488317440 is an apocalyptic number.

159488317440 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 159488317440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284540256000).

159488317440 is an abundant number, since it is smaller than the sum of its proper divisors (409592194560).

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

159488317440 is a wasteful number, since it uses less digits than its factorization.

159488317440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222 (or 2196 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 159488317440 in words is "one hundred fifty-nine billion, four hundred eighty-eight million, three hundred seventeen thousand, four hundred forty".