1161096072 has 64 divisors (see below), whose sum is σ = 3005544960. Its totient is φ = 373401600.

The previous prime is 1161096049. The next prime is 1161096077. The reversal of 1161096072 is 2706901611.

It is not an unprimeable number, because it can be changed into a prime (1161096077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260422 + ... + 264842.

It is an arithmetic number, because the mean of its divisors is an integer number (46961640).

Almost surely, 2^1161096072 is an apocalyptic number.

1161096072 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 1161096072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1502772480).

1161096072 is an abundant number, since it is smaller than the sum of its proper divisors (1844448888).

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

1161096072 is a wasteful number, since it uses less digits than its factorization.

1161096072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4814 (or 4810 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 1161096072 is about 34074.8598236295. The cubic root of 1161096072 is about 1051.0484077090.

Adding to 1161096072 its reverse (2706901611), we get a palindrome (3867997683).

The spelling of 1161096072 in words is "one billion, one hundred sixty-one million, ninety-six thousand, seventy-two".