158796368640 has 432 divisors, whose sum is σ = 676212333888. Its totient is φ = 33504067584.

The previous prime is 158796368623. The next prime is 158796368669. The reversal of 158796368640 is 46863697851.

158796368640 is a `hidden beast` number, since 1 + 587 + 9 + 6 + 3 + 6 + 8 + 6 + 40 = 666.

It is a super-4 number, since 4×158796368640⁴ (a number of 46 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 972582 + ... + 1124058.

Almost surely, 2^158796368640 is an apocalyptic number.

158796368640 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 158796368640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338106166944).

158796368640 is an abundant number, since it is smaller than the sum of its proper divisors (517415965248).

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

158796368640 is a wasteful number, since it uses less digits than its factorization.

158796368640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151524 (or 151507 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 158796368640 in words is "one hundred fifty-eight billion, seven hundred ninety-six million, three hundred sixty-eight thousand, six hundred forty".