123307666 has 8 divisors (see below), whose sum is σ = 185012784. Its totient is φ = 61636740.

The previous prime is 123307651. The next prime is 123307673. The reversal of 123307666 is 666703321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4381 + ... + 16303.

It is an arithmetic number, because the mean of its divisors is an integer number (23126598).

Almost surely, 2^123307666 is an apocalyptic number.

123307666 is a deficient number, since it is larger than the sum of its proper divisors (61705118).

123307666 is a wasteful number, since it uses less digits than its factorization.

123307666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17096.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 123307666 is about 11104.3984978926. The cubic root of 123307666 is about 497.7332942854.

The spelling of 123307666 in words is "one hundred twenty-three million, three hundred seven thousand, six hundred sixty-six".