11938455666383 has 4 divisors (see below), whose sum is σ = 11938463122968. Its totient is φ = 11938448209800.

The previous prime is 11938455666377. The next prime is 11938455666407. The reversal of 11938455666383 is 38366655483911.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11938455666383 - 2¹⁴ = 11938455649999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11938455666373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236768 + ... + 4892133.

It is an arithmetic number, because the mean of its divisors is an integer number (2984615780742).

Almost surely, 2^{11938455666383} is an apocalyptic number.

11938455666383 is a deficient number, since it is larger than the sum of its proper divisors (7456585).

11938455666383 is an equidigital number, since it uses as much as digits as its factorization.

11938455666383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7456584.

The product of its digits is 335923200, while the sum is 68.

The spelling of 11938455666383 in words is "eleven trillion, nine hundred thirty-eight billion, four hundred fifty-five million, six hundred sixty-six thousand, three hundred eighty-three".