1161330669 has 16 divisors (see below), whose sum is σ = 1721874240. Its totient is φ = 773597520.

The previous prime is 1161330641. The next prime is 1161330671. The reversal of 1161330669 is 9660331611.

1161330669 is a `hidden beast` number, since 1 + 1 + 613 + 30 + 6 + 6 + 9 = 666.

It is not a de Polignac number, because 1161330669 - 2²⁰ = 1160282093 is a prime.

It is a super-2 number, since 2×1161330669² = 2697377845519975122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161330869) 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 15 ways as a sum of consecutive naturals, for example, 18199 + ... + 51515.

It is an arithmetic number, because the mean of its divisors is an integer number (107617140).

Almost surely, 2^1161330669 is an apocalyptic number.

It is an amenable number.

1161330669 is a deficient number, since it is larger than the sum of its proper divisors (560543571).

1161330669 is a wasteful number, since it uses less digits than its factorization.

1161330669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34617 (or 34611 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 1161330669 is about 34078.3020263628. The cubic root of 1161330669 is about 1051.1191903097.

The spelling of 1161330669 in words is "one billion, one hundred sixty-one million, three hundred thirty thousand, six hundred sixty-nine".