11055440001 has 16 divisors (see below), whose sum is σ = 15507345600. Its totient is φ = 6995529408.

The previous prime is 11055439991. The next prime is 11055440009. The reversal of 11055440001 is 10004455011.

It is not a de Polignac number, because 11055440001 - 2¹⁸ = 11055177857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11055440001.

It is not an unprimeable number, because it can be changed into a prime (11055440009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1071766 + ... + 1082031.

It is an arithmetic number, because the mean of its divisors is an integer number (969209100).

Almost surely, 2^11055440001 is an apocalyptic number.

It is an amenable number.

11055440001 is a deficient number, since it is larger than the sum of its proper divisors (4451905599).

11055440001 is a wasteful number, since it uses less digits than its factorization.

11055440001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153888.

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 11055440001 its reverse (10004455011), we get a palindrome (21059895012).

The spelling of 11055440001 in words is "eleven billion, fifty-five million, four hundred forty thousand, one".