159463320138 has 64 divisors (see below), whose sum is σ = 360836689920. Its totient is φ = 52192014336.

The previous prime is 159463320127. The next prime is 159463320161. The reversal of 159463320138 is 831023364951.

159463320138 is a `hidden beast` number, since 1 + 5 + 9 + 4 + 633 + 2 + 0 + 1 + 3 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 159463320093 and 159463320102.

It is an unprimeable number.

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, 545370 + ... + 785082.

It is an arithmetic number, because the mean of its divisors is an integer number (5638073280).

Almost surely, 2^159463320138 is an apocalyptic number.

159463320138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 159463320138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180418344960).

159463320138 is an abundant number, since it is smaller than the sum of its proper divisors (201373369782).

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

159463320138 is a wasteful number, since it uses less digits than its factorization.

159463320138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239948 (or 239942 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 159463320138 in words is "one hundred fifty-nine billion, four hundred sixty-three million, three hundred twenty thousand, one hundred thirty-eight".