123666322 has 16 divisors (see below), whose sum is σ = 202753152. Its totient is φ = 56224080.

The previous prime is 123666293. The next prime is 123666329. The reversal of 123666322 is 223666321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (123666329) 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 7 ways as a sum of consecutive naturals, for example, 33754 + ... + 37237.

It is an arithmetic number, because the mean of its divisors is an integer number (12672072).

Almost surely, 2^123666322 is an apocalyptic number.

123666322 is a deficient number, since it is larger than the sum of its proper divisors (79086830).

123666322 is a wasteful number, since it uses less digits than its factorization.

123666322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71073.

The product of its digits is 15552, while the sum is 31.

The square root of 123666322 is about 11120.5360482308. The cubic root of 123666322 is about 498.2154006551.

Subtracting 123666322 from its reverse (223666321), we obtain a palindrome (99999999).

The spelling of 123666322 in words is "one hundred twenty-three million, six hundred sixty-six thousand, three hundred twenty-two".