1165161807 has 16 divisors (see below), whose sum is σ = 1801217280. Its totient is φ = 743001336.

The previous prime is 1165161791. The next prime is 1165161863. The reversal of 1165161807 is 7081615611.

It is not a de Polignac number, because 1165161807 - 2⁴ = 1165161791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165161887) 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, 937513 + ... + 938754.

It is an arithmetic number, because the mean of its divisors is an integer number (112576080).

Almost surely, 2^1165161807 is an apocalyptic number.

1165161807 is a deficient number, since it is larger than the sum of its proper divisors (636055473).

1165161807 is a wasteful number, since it uses less digits than its factorization.

1165161807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876299 (or 1876293 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 1165161807 is about 34134.4665550818. The cubic root of 1165161807 is about 1052.2737746285.

The spelling of 1165161807 in words is "one billion, one hundred sixty-five million, one hundred sixty-one thousand, eight hundred seven".