1165383665 has 8 divisors (see below), whose sum is σ = 1459263168. Its totient is φ = 891771760.

The previous prime is 1165383629. The next prime is 1165383673. The reversal of 1165383665 is 5663835611.

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

It is not a de Polignac number, because 1165383665 - 2¹² = 1165379569 is a prime.

It is a Duffinian 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, 5066771 + ... + 5067000.

It is an arithmetic number, because the mean of its divisors is an integer number (182407896).

Almost surely, 2^1165383665 is an apocalyptic number.

It is an amenable number.

1165383665 is a deficient number, since it is larger than the sum of its proper divisors (293879503).

1165383665 is a wasteful number, since it uses less digits than its factorization.

1165383665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10133799.

The product of its digits is 388800, while the sum is 44.

The square root of 1165383665 is about 34137.7161655551. The cubic root of 1165383665 is about 1052.3405580680.

The spelling of 1165383665 in words is "one billion, one hundred sixty-five million, three hundred eighty-three thousand, six hundred sixty-five".