1161118032 has 80 divisors (see below), whose sum is σ = 3089802240. Its totient is φ = 375500800.

The previous prime is 1161118027. The next prime is 1161118043. The reversal of 1161118032 is 2308111611.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1161117993 and 1161118011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374344 + ... + 377432.

It is an arithmetic number, because the mean of its divisors is an integer number (38622528).

Almost surely, 2^1161118032 is an apocalyptic number.

1161118032 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 1161118032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1544901120).

1161118032 is an abundant number, since it is smaller than the sum of its proper divisors (1928684208).

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

1161118032 is a wasteful number, since it uses less digits than its factorization.

1161118032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332 (or 3326 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 1161118032 is about 34075.1820538057. The cubic root of 1161118032 is about 1051.0550338841.

Adding to 1161118032 its reverse (2308111611), we get a palindrome (3469229643).

The spelling of 1161118032 in words is "one billion, one hundred sixty-one million, one hundred eighteen thousand, thirty-two".