158940323136 has 252 divisors, whose sum is σ = 552996823392. Its totient is φ = 43436929536.

The previous prime is 158940323131. The next prime is 158940323183. The reversal of 158940323136 is 631323049851.

158940323136 is a `hidden beast` number, since 1 + 5 + 8 + 9 + 403 + 231 + 3 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (252).

It is a junction number, because it is equal to n+sod(n) for n = 158940323091 and 158940323100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158940323131) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 526731 + ... + 771573.

Almost surely, 2^158940323136 is an apocalyptic number.

158940323136 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 158940323136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276498411696).

158940323136 is an abundant number, since it is smaller than the sum of its proper divisors (394056500256).

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

158940323136 is a wasteful number, since it uses less digits than its factorization.

158940323136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244898 (or 244878 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 158940323136 in words is "one hundred fifty-eight billion, nine hundred forty million, three hundred twenty-three thousand, one hundred thirty-six".