11011004165 has 48 divisors (see below), whose sum is σ = 16187237760. Its totient is φ = 7022246400.

The previous prime is 11011004149. The next prime is 11011004189. The reversal of 11011004165 is 56140011011.

It is a happy number.

It is not a de Polignac number, because 11011004165 - 2⁴ = 11011004149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21134105 + ... + 21134625.

It is an arithmetic number, because the mean of its divisors is an integer number (337234120).

Almost surely, 2^11011004165 is an apocalyptic number.

It is an amenable number.

11011004165 is a deficient number, since it is larger than the sum of its proper divisors (5176233595).

11011004165 is an frugal number, since it uses more digits than its factorization.

11011004165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 11011004165 its reverse (56140011011), we get a palindrome (67151015176).

The spelling of 11011004165 in words is "eleven billion, eleven million, four thousand, one hundred sixty-five".