158111491824 has 960 divisors, whose sum is σ = 570923458560. Its totient is φ = 40479436800.

The previous prime is 158111491823. The next prime is 158111491903. The reversal of 158111491824 is 428194111851.

158111491824 is a `hidden beast` number, since 1 + 5 + 81 + 1 + 1 + 491 + 82 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 158111491824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158111491823) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1776533572 + ... + 1776533660.

It is an arithmetic number, because the mean of its divisors is an integer number (594711936).

Almost surely, 2^158111491824 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 158111491824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285461729280).

158111491824 is an abundant number, since it is smaller than the sum of its proper divisors (412811966736).

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

158111491824 is a wasteful number, since it uses less digits than its factorization.

158111491824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 172 counting only the distinct ones).

The product of its digits is 92160, while the sum is 45.

The spelling of 158111491824 in words is "one hundred fifty-eight billion, one hundred eleven million, four hundred ninety-one thousand, eight hundred twenty-four".