123668000618 has 32 divisors (see below), whose sum is σ = 193269404160. Its totient is φ = 59300144640.

The previous prime is 123668000611. The next prime is 123668000627. The reversal of 123668000618 is 816000866321.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (123668000611) 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, 2608130 + ... + 2655122.

It is an arithmetic number, because the mean of its divisors is an integer number (6039668880).

Almost surely, 2^123668000618 is an apocalyptic number.

123668000618 is a deficient number, since it is larger than the sum of its proper divisors (69601403542).

123668000618 is a wasteful number, since it uses less digits than its factorization.

123668000618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47582.

The product of its (nonzero) digits is 82944, while the sum is 41.

Adding to 123668000618 its reverse (816000866321), we get a palindrome (939668866939).

The spelling of 123668000618 in words is "one hundred twenty-three billion, six hundred sixty-eight million, six hundred eighteen", and thus it is an aban number.