11005505001005 has 16 divisors (see below), whose sum is σ = 14225348404224. Its totient is φ = 8149939184640.

The previous prime is 11005505000999. The next prime is 11005505001041. The reversal of 11005505001005 is 50010050550011.

It is a happy number.

It is not a de Polignac number, because 11005505001005 - 2⁴² = 6607458489901 is a prime.

It is a super-2 number, since 2×11005505001005² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1543545524 + ... + 1543552653.

It is an arithmetic number, because the mean of its divisors is an integer number (889084275264).

Almost surely, 2^{11005505001005} is an apocalyptic number.

It is an amenable number.

11005505001005 is a deficient number, since it is larger than the sum of its proper divisors (3219843403219).

11005505001005 is a wasteful number, since it uses less digits than its factorization.

11005505001005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3087098236.

The product of its (nonzero) digits is 625, while the sum is 23.

Adding to 11005505001005 its reverse (50010050550011), we get a palindrome (61015555551016).

The spelling of 11005505001005 in words is "eleven trillion, five billion, five hundred five million, one thousand, five".