159748331904 has 384 divisors, whose sum is σ = 549460454400. Its totient is φ = 43558023168.

The previous prime is 159748331903. The next prime is 159748331921. The reversal of 159748331904 is 409133847951.

159748331904 is a `hidden beast` number, since 1 + 597 + 4 + 8 + 33 + 19 + 0 + 4 = 666.

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

It is a super-2 number, since 2×159748331904² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159748331903) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121112557 + ... + 121113875.

It is an arithmetic number, because the mean of its divisors is an integer number (1430886600).

Almost surely, 2^159748331904 is an apocalyptic number.

159748331904 is a gapful number since it is divisible by the number (14) 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 159748331904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274730227200).

159748331904 is an abundant number, since it is smaller than the sum of its proper divisors (389712122496).

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

159748331904 is a wasteful number, since it uses less digits than its factorization.

159748331904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022 (or 2007 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 159748331904 in words is "one hundred fifty-nine billion, seven hundred forty-eight million, three hundred thirty-one thousand, nine hundred four".