158156607925440 has 336 divisors, whose sum is σ = 562831306034400. Its totient is φ = 40714985816064.

The previous prime is 158156607925397. The next prime is 158156607925453. The reversal of 158156607925440 is 44529706651851.

It is a happy number.

158156607925440 is a `hidden beast` number, since 1 + 5 + 8 + 1 + 566 + 0 + 7 + 9 + 25 + 4 + 40 = 666.

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, 602799724 + ... + 603062036.

Almost surely, 2^{158156607925440} is an apocalyptic number.

158156607925440 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 158156607925440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281415653017200).

158156607925440 is an abundant number, since it is smaller than the sum of its proper divisors (404674698108960).

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

158156607925440 is a wasteful number, since it uses less digits than its factorization.

158156607925440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269584 (or 269571 counting only the distinct ones).

The product of its (nonzero) digits is 72576000, while the sum is 63.

The spelling of 158156607925440 in words is "one hundred fifty-eight trillion, one hundred fifty-six billion, six hundred seven million, nine hundred twenty-five thousand, four hundred forty".