1123456668 has 24 divisors (see below), whose sum is σ = 2627493120. Its totient is φ = 373614960.

The previous prime is 1123456627. The next prime is 1123456669. The reversal of 1123456668 is 8666543211.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123456669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103438 + ... + 113781.

It is an arithmetic number, because the mean of its divisors is an integer number (109478880).

Almost surely, 2^1123456668 is an apocalyptic number.

It is an amenable number.

1123456668 is an abundant number, since it is smaller than the sum of its proper divisors (1504036452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123456668 is a wasteful number, since it uses less digits than its factorization.

1123456668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217657 (or 217655 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 1123456668 is about 33518.0051315707. The cubic root of 1123456668 is about 1039.5660998155.

Adding to 1123456668 its reverse (8666543211), we get a palindrome (9789999879).

The spelling of 1123456668 in words is "one billion, one hundred twenty-three million, four hundred fifty-six thousand, six hundred sixty-eight".