159478139520 has 1024 divisors, whose sum is σ = 671100595200. Its totient is φ = 35473489920.

The previous prime is 159478139489. The next prime is 159478139521. The reversal of 159478139520 is 25931874951.

It is a happy number.

159478139520 is a `hidden beast` number, since 1 + 5 + 9 + 4 + 7 + 81 + 39 + 520 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (159478139521) 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 127 ways as a sum of consecutive naturals, for example, 401707962 + ... + 401708358.

It is an arithmetic number, because the mean of its divisors is an integer number (655371675).

Almost surely, 2^159478139520 is an apocalyptic number.

159478139520 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 159478139520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335550297600).

159478139520 is an abundant number, since it is smaller than the sum of its proper divisors (511622455680).

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

159478139520 is an frugal number, since it uses more digits than its factorization.

159478139520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 159478139520 in words is "one hundred fifty-nine billion, four hundred seventy-eight million, one hundred thirty-nine thousand, five hundred twenty".