11663044773 has 4 divisors (see below), whose sum is σ = 15550726368. Its totient is φ = 7775363180.

The previous prime is 11663044747. The next prime is 11663044829. The reversal of 11663044773 is 37744036611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11663044773 - 2⁵ = 11663044741 is a prime.

It is a super-2 number, since 2×11663044773² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11663044273) 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, 1943840793 + ... + 1943840798.

It is an arithmetic number, because the mean of its divisors is an integer number (3887681592).

Almost surely, 2^11663044773 is an apocalyptic number.

It is an amenable number.

11663044773 is a deficient number, since it is larger than the sum of its proper divisors (3887681595).

11663044773 is an equidigital number, since it uses as much as digits as its factorization.

11663044773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3887681594.

The product of its (nonzero) digits is 254016, while the sum is 42.

The spelling of 11663044773 in words is "eleven billion, six hundred sixty-three million, forty-four thousand, seven hundred seventy-three".