11446644403 has 4 divisors (see below), whose sum is σ = 11449761120. Its totient is φ = 11443527688.

The previous prime is 11446644397. The next prime is 11446644421. The reversal of 11446644403 is 30444664411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30444664411 = 7 ⋅4349237773.

It is a cyclic number.

It is not a de Polignac number, because 11446644403 - 2³³ = 2856709811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11446647403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1552843 + ... + 1560196.

It is an arithmetic number, because the mean of its divisors is an integer number (2862440280).

Almost surely, 2^11446644403 is an apocalyptic number.

11446644403 is a deficient number, since it is larger than the sum of its proper divisors (3116717).

11446644403 is an equidigital number, since it uses as much as digits as its factorization.

11446644403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3116716.

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 11446644403 in words is "eleven billion, four hundred forty-six million, six hundred forty-four thousand, four hundred three".