11055510165 has 48 divisors (see below), whose sum is σ = 21133058688. Its totient is φ = 4834186368.

The previous prime is 11055510161. The next prime is 11055510203. The reversal of 11055510165 is 56101555011.

It is not a de Polignac number, because 11055510165 - 2² = 11055510161 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11055510161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43974 + ... + 155063.

It is an arithmetic number, because the mean of its divisors is an integer number (440272056).

Almost surely, 2^11055510165 is an apocalyptic number.

11055510165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11055510165 is a deficient number, since it is larger than the sum of its proper divisors (10077548523).

11055510165 is a wasteful number, since it uses less digits than its factorization.

11055510165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199098 (or 199075 counting only the distinct ones).

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

The spelling of 11055510165 in words is "eleven billion, fifty-five million, five hundred ten thousand, one hundred sixty-five".