123446666668 has 24 divisors (see below), whose sum is σ = 233154195120. Its totient is φ = 56851782720.

The previous prime is 123446666653. The next prime is 123446666701. The reversal of 123446666668 is 866666644321.

It is a happy number.

It is a super-2 number, since 2×123446666668² (a number of 23 digits) contains 22 as substring.

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2550838 + ... + 2598781.

It is an arithmetic number, because the mean of its divisors is an integer number (9714758130).

Almost surely, 2^123446666668 is an apocalyptic number.

It is an amenable number.

123446666668 is a deficient number, since it is larger than the sum of its proper divisors (109707528452).

123446666668 is a wasteful number, since it uses less digits than its factorization.

123446666668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5150097 (or 5150095 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 58.

The spelling of 123446666668 in words is "one hundred twenty-three billion, four hundred forty-six million, six hundred sixty-six thousand, six hundred sixty-eight".