123360666 has 64 divisors (see below), whose sum is σ = 294731136. Its totient is φ = 33926400.

The previous prime is 123360649. The next prime is 123360683. The reversal of 123360666 is 666063321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (123360649) and next prime (123360683).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51160 + ... + 53516.

It is an arithmetic number, because the mean of its divisors is an integer number (4605174).

Almost surely, 2^123360666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123360666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147365568).

123360666 is an abundant number, since it is smaller than the sum of its proper divisors (171370470).

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

123360666 is a wasteful number, since it uses less digits than its factorization.

123360666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 123360666 is about 11106.7846832465. The cubic root of 123360666 is about 497.8045958431.

The spelling of 123360666 in words is "one hundred twenty-three million, three hundred sixty thousand, six hundred sixty-six".