158117238708 has 192 divisors, whose sum is σ = 468587642880. Its totient is φ = 40768012800.

The previous prime is 158117238707. The next prime is 158117238757. The reversal of 158117238708 is 807832711851.

It is a happy number.

It is a super-2 number, since 2×158117238708² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158117238707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1140813 + ... + 1271883.

It is an arithmetic number, because the mean of its divisors is an integer number (2440560640).

Almost surely, 2^158117238708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158117238708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234293821440).

158117238708 is an abundant number, since it is smaller than the sum of its proper divisors (310470404172).

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

158117238708 is a wasteful number, since it uses less digits than its factorization.

158117238708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131158 (or 131156 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 51.

The spelling of 158117238708 in words is "one hundred fifty-eight billion, one hundred seventeen million, two hundred thirty-eight thousand, seven hundred eight".