1161067565 has 8 divisors (see below), whose sum is σ = 1592321280. Its totient is φ = 796160592.

The previous prime is 1161067543. The next prime is 1161067571. The reversal of 1161067565 is 5657601611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1161067565 - 2¹² = 1161063469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16586645 + ... + 16586714.

It is an arithmetic number, because the mean of its divisors is an integer number (199040160).

Almost surely, 2^1161067565 is an apocalyptic number.

It is an amenable number.

1161067565 is a deficient number, since it is larger than the sum of its proper divisors (431253715).

1161067565 is an equidigital number, since it uses as much as digits as its factorization.

1161067565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33173371.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 1161067565 is about 34074.4415214688. The cubic root of 1161067565 is about 1051.0398059281.

The spelling of 1161067565 in words is "one billion, one hundred sixty-one million, sixty-seven thousand, five hundred sixty-five".