11450165565 has 16 divisors (see below), whose sum is σ = 18321645888. Its totient is φ = 6106294656.

The previous prime is 11450165537. The next prime is 11450165569. The reversal of 11450165565 is 56556105411.

It is not a de Polignac number, because 11450165565 - 2¹⁵ = 11450132797 is a prime.

It is a super-2 number, since 2×11450165565² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11450165569) 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, 292809 + ... + 329601.

It is an arithmetic number, because the mean of its divisors is an integer number (1145102868).

Almost surely, 2^11450165565 is an apocalyptic number.

11450165565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11450165565 is a deficient number, since it is larger than the sum of its proper divisors (6871480323).

11450165565 is a wasteful number, since it uses less digits than its factorization.

11450165565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57548.

The product of its (nonzero) digits is 90000, while the sum is 39.

The spelling of 11450165565 in words is "eleven billion, four hundred fifty million, one hundred sixty-five thousand, five hundred sixty-five".