1165364011 has 6 divisors (see below), whose sum is σ = 1355627580. Its totient is φ = 998883396.

The previous prime is 1165364009. The next prime is 1165364021. The reversal of 1165364011 is 1104635611.

It is not a de Polignac number, because 1165364011 - 2¹ = 1165364009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1165364021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11891421 + ... + 11891518.

It is an arithmetic number, because the mean of its divisors is an integer number (225937930).

Almost surely, 2^1165364011 is an apocalyptic number.

1165364011 is a deficient number, since it is larger than the sum of its proper divisors (190263569).

1165364011 is an equidigital number, since it uses as much as digits as its factorization.

1165364011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23782953 (or 23782946 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1165364011 is about 34137.4283009134. The cubic root of 1165364011 is about 1052.3346421858.

Adding to 1165364011 its reverse (1104635611), we get a palindrome (2269999622).

The spelling of 1165364011 in words is "one billion, one hundred sixty-five million, three hundred sixty-four thousand, eleven".