666222116333 has 16 divisors (see below), whose sum is σ = 707895282816. Its totient is φ = 625713285120.

The previous prime is 666222116321. The next prime is 666222116363. The reversal of 666222116333 is 333611222666.

It is not a de Polignac number, because 666222116333 - 2⁴ = 666222116317 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 (666222116363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 919748 + ... + 1475933.

It is an arithmetic number, because the mean of its divisors is an integer number (44243455176).

Almost surely, 2^666222116333 is an apocalyptic number.

It is an amenable number.

666222116333 is a deficient number, since it is larger than the sum of its proper divisors (41673166483).

666222116333 is a wasteful number, since it uses less digits than its factorization.

666222116333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395924.

The product of its digits is 279936, while the sum is 41.

Adding to 666222116333 its reverse (333611222666), we get a palindrome (999833338999).

The spelling of 666222116333 in words is "six hundred sixty-six billion, two hundred twenty-two million, one hundred sixteen thousand, three hundred thirty-three".