11111666673331 has 6 divisors (see below), whose sum is σ = 12925816334340. Its totient is φ = 9524285719956.

The previous prime is 11111666673323. The next prime is 11111666673347. The reversal of 11111666673331 is 13337666611111.

It is a happy number.

It is not a de Polignac number, because 11111666673331 - 2³ = 11111666673323 is a prime.

It is a super-2 number, since 2×11111666673331² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11111666673391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113384353761 + ... + 113384353858.

It is an arithmetic number, because the mean of its divisors is an integer number (2154302722390).

Almost surely, 2^{11111666673331} is an apocalyptic number.

11111666673331 is a deficient number, since it is larger than the sum of its proper divisors (1814149661009).

11111666673331 is an equidigital number, since it uses as much as digits as its factorization.

11111666673331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226768707633 (or 226768707626 counting only the distinct ones).

The product of its digits is 244944, while the sum is 46.

The spelling of 11111666673331 in words is "eleven trillion, one hundred eleven billion, six hundred sixty-six million, six hundred seventy-three thousand, three hundred thirty-one".