158388543720 has 640 divisors, whose sum is σ = 618507394560. Its totient is φ = 35928023040.

The previous prime is 158388543713. The next prime is 158388543721. The reversal of 158388543720 is 27345883851.

158388543720 is a `hidden beast` number, since 1 + 583 + 8 + 8 + 5 + 4 + 37 + 20 = 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 (158388543721) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 119357697 + ... + 119359023.

It is an arithmetic number, because the mean of its divisors is an integer number (966417804).

Almost surely, 2^158388543720 is an apocalyptic number.

158388543720 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 158388543720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309253697280).

158388543720 is an abundant number, since it is smaller than the sum of its proper divisors (460118850840).

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

158388543720 is a wasteful number, since it uses less digits than its factorization.

158388543720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575 (or 1562 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

It can be divided in two parts, 15838 and 8543720, that added together give a palindrome (8559558).

The spelling of 158388543720 in words is "one hundred fifty-eight billion, three hundred eighty-eight million, five hundred forty-three thousand, seven hundred twenty".