158747228640 has 864 divisors, whose sum is σ = 740386404576. Its totient is φ = 30447083520.

The previous prime is 158747228621. The next prime is 158747228659. The reversal of 158747228640 is 46822747851.

158747228640 is a `hidden beast` number, since 1 + 58 + 7 + 472 + 2 + 86 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (158747228621) and next prime (158747228659).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 10082214 + ... + 10097946.

It is an arithmetic number, because the mean of its divisors is an integer number (856928709).

Almost surely, 2^158747228640 is an apocalyptic number.

158747228640 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 158747228640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370193202288).

158747228640 is an abundant number, since it is smaller than the sum of its proper divisors (581639175936).

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

158747228640 is a wasteful number, since it uses less digits than its factorization.

158747228640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15792 (or 15774 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 54.

The spelling of 158747228640 in words is "one hundred fifty-eight billion, seven hundred forty-seven million, two hundred twenty-eight thousand, six hundred forty".