158012131795056 has 720 divisors, whose sum is σ = 574038683172864. Its totient is φ = 39717259718400.

The previous prime is 158012131795027. The next prime is 158012131795069. The reversal of 158012131795056 is 650597131210851.

158012131795056 is a `hidden beast` number, since 1 + 5 + 8 + 0 + 121 + 3 + 1 + 7 + 9 + 505 + 6 = 666.

It is a super-3 number, since 3×158012131795056³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 158012131794993 and 158012131795011.

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, 3633526945 + ... + 3633570431.

Almost surely, 2^{158012131795056} is an apocalyptic number.

158012131795056 is a gapful number since it is divisible by the number (16) 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 158012131795056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287019341586432).

158012131795056 is an abundant number, since it is smaller than the sum of its proper divisors (416026551377808).

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

158012131795056 is a wasteful number, since it uses less digits than its factorization.

158012131795056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43623 (or 43541 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 54.

The spelling of 158012131795056 in words is "one hundred fifty-eight trillion, twelve billion, one hundred thirty-one million, seven hundred ninety-five thousand, fifty-six".