158794939755648 has 1024 divisors, whose sum is σ = 572974414848000. Its totient is φ = 42816018604032.

The previous prime is 158794939755619. The next prime is 158794939755653. The reversal of 158794939755648 is 846557939497851.

It is a happy number.

158794939755648 is a `hidden beast` number, since 1 + 5 + 8 + 7 + 9 + 4 + 9 + 3 + 9 + 7 + 556 + 48 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9791873236 + ... + 9791889452.

It is an arithmetic number, because the mean of its divisors is an integer number (559545327000).

Almost surely, 2^{158794939755648} is an apocalyptic number.

158794939755648 is a gapful number since it is divisible by the number (18) 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 158794939755648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286487207424000).

158794939755648 is an abundant number, since it is smaller than the sum of its proper divisors (414179475092352).

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

158794939755648 is an equidigital number, since it uses as much as digits as its factorization.

158794939755648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16541 (or 16511 counting only the distinct ones).

The product of its digits is 82301184000, while the sum is 90.

The spelling of 158794939755648 in words is "one hundred fifty-eight trillion, seven hundred ninety-four billion, nine hundred thirty-nine million, seven hundred fifty-five thousand, six hundred forty-eight".