1165852116 has 120 divisors (see below), whose sum is σ = 3580736544. Its totient is φ = 326099520.

The previous prime is 1165852111. The next prime is 1165852147. The reversal of 1165852116 is 6112585611.

1165852116 is a `hidden beast` number, since 116 + 5 + 8 + 521 + 16 = 666.

It is a super-2 number, since 2×1165852116² = 2718422312763354912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165852111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 33751 + ... + 58913.

Almost surely, 2^1165852116 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 1165852116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1790368272).

1165852116 is an abundant number, since it is smaller than the sum of its proper divisors (2414884428).

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

1165852116 is a wasteful number, since it uses less digits than its factorization.

1165852116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25203 (or 25192 counting only the distinct ones).

The product of its digits is 14400, while the sum is 36.

The square root of 1165852116 is about 34144.5766703879. The cubic root of 1165852116 is about 1052.4815428106.

The spelling of 1165852116 in words is "one billion, one hundred sixty-five million, eight hundred fifty-two thousand, one hundred sixteen".