11155510065 has 16 divisors (see below), whose sum is σ = 20398647168. Its totient is φ = 5099661696.

The previous prime is 11155510057. The next prime is 11155510073. The reversal of 11155510065 is 56001555111.

11155510065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11155510057) and next prime (11155510073).

It is not a de Polignac number, because 11155510065 - 2³ = 11155510057 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53121372 + ... + 53121581.

It is an arithmetic number, because the mean of its divisors is an integer number (1274915448).

Almost surely, 2^11155510065 is an apocalyptic number.

11155510065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11155510065 is a deficient number, since it is larger than the sum of its proper divisors (9243137103).

11155510065 is a wasteful number, since it uses less digits than its factorization.

11155510065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106242968.

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 11155510065 in words is "eleven billion, one hundred fifty-five million, five hundred ten thousand, sixty-five".