11455040044 has 12 divisors (see below), whose sum is σ = 22910080144. Its totient is φ = 4909302864.

The previous prime is 11455040021. The next prime is 11455040059. The reversal of 11455040044 is 44004055411.

11455040044 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 409108573 = 11455040044 / (1 + 1 + 4 + 5 + 5 + 0 + 4 + 0 + 0 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 11455039994 and 11455040021.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204554259 + ... + 204554314.

Almost surely, 2^11455040044 is an apocalyptic number.

11455040044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11455040044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11455040044 is a wasteful number, since it uses less digits than its factorization.

11455040044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409108584 (or 409108582 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 11455040044 its reverse (44004055411), we get a palindrome (55459095455).

The spelling of 11455040044 in words is "eleven billion, four hundred fifty-five million, forty thousand, forty-four".