11165528285 has 16 divisors (see below), whose sum is σ = 13786634160. Its totient is φ = 8677094400.

The previous prime is 11165528281. The next prime is 11165528299. The reversal of 11165528285 is 58282556111.

It can be written as a sum of positive squares in 8 ways, for example, as 3498249316 + 7667278969 = 59146^2 + 87563^2 .

It is not a de Polignac number, because 11165528285 - 2² = 11165528281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11165528281) 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, 181820 + ... + 235349.

It is an arithmetic number, because the mean of its divisors is an integer number (861664635).

Almost surely, 2^11165528285 is an apocalyptic number.

It is an amenable number.

11165528285 is a deficient number, since it is larger than the sum of its proper divisors (2621105875).

11165528285 is a wasteful number, since it uses less digits than its factorization.

11165528285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417328.

The product of its digits is 192000, while the sum is 44.

The spelling of 11165528285 in words is "eleven billion, one hundred sixty-five million, five hundred twenty-eight thousand, two hundred eighty-five".