1158597216 has 192 divisors, whose sum is σ = 4030387200. Its totient is φ = 316597248.

The previous prime is 1158597191. The next prime is 1158597233. The reversal of 1158597216 is 6127958511.

1158597216 is a `hidden beast` number, since 1 + 1 + 58 + 597 + 2 + 1 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134940 + ... + 143268.

It is an arithmetic number, because the mean of its divisors is an integer number (20991600).

Almost surely, 2^1158597216 is an apocalyptic number.

1158597216 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 1158597216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2015193600).

1158597216 is an abundant number, since it is smaller than the sum of its proper divisors (2871789984).

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

1158597216 is a wasteful number, since it uses less digits than its factorization.

1158597216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8378 (or 8364 counting only the distinct ones).

The product of its digits is 151200, while the sum is 45.

The square root of 1158597216 is about 34038.1729239394. The cubic root of 1158597216 is about 1050.2938606075.

It can be divided in two parts, 11585 and 97216, that added together give a palindrome (108801).

The spelling of 1158597216 in words is "one billion, one hundred fifty-eight million, five hundred ninety-seven thousand, two hundred sixteen".