158615135232 has 88 divisors (see below), whose sum is σ = 424129098432. Its totient is φ = 52701388800.

The previous prime is 158615135227. The next prime is 158615135233. The reversal of 158615135232 is 232531516851.

It is a super-2 number, since 2×158615135232² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (158615135233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 872382 + ... + 1038402.

Almost surely, 2^158615135232 is an apocalyptic number.

158615135232 is a gapful number since it is divisible by the number (12) 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 158615135232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212064549216).

158615135232 is an abundant number, since it is smaller than the sum of its proper divisors (265513963200).

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

158615135232 is a wasteful number, since it uses less digits than its factorization.

158615135232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166355 (or 166337 counting only the distinct ones).

The product of its digits is 216000, while the sum is 42.

The spelling of 158615135232 in words is "one hundred fifty-eight billion, six hundred fifteen million, one hundred thirty-five thousand, two hundred thirty-two".