1165375011 has 16 divisors (see below), whose sum is σ = 1588608000. Its totient is φ = 759565248.

The previous prime is 1165375009. The next prime is 1165375087. The reversal of 1165375011 is 1105735611.

It is not a de Polignac number, because 1165375011 - 2¹ = 1165375009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1165375011.

It is not an unprimeable number, because it can be changed into a prime (1165375111) 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, 143970 + ... + 151848.

It is an arithmetic number, because the mean of its divisors is an integer number (99288000).

Almost surely, 2^1165375011 is an apocalyptic number.

1165375011 is a deficient number, since it is larger than the sum of its proper divisors (423232989).

1165375011 is a wasteful number, since it uses less digits than its factorization.

1165375011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8978.

The product of its (nonzero) digits is 3150, while the sum is 30.

The square root of 1165375011 is about 34137.5894140169. The cubic root of 1165375011 is about 1052.3379532098.

The spelling of 1165375011 in words is "one billion, one hundred sixty-five million, three hundred seventy-five thousand, eleven".