123966066 has 16 divisors (see below), whose sum is σ = 283351104. Its totient is φ = 35418864.

The previous prime is 123966049. The next prime is 123966077. The reversal of 123966066 is 660669321.

It is a happy number.

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, 1475745 + ... + 1475828.

It is an arithmetic number, because the mean of its divisors is an integer number (17709444).

Almost surely, 2^123966066 is an apocalyptic number.

123966066 is an abundant number, since it is smaller than the sum of its proper divisors (159385038).

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

123966066 is a wasteful number, since it uses less digits than its factorization.

123966066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951585.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 123966066 is about 11134.0049398229. The cubic root of 123966066 is about 498.6176028117.

The spelling of 123966066 in words is "one hundred twenty-three million, nine hundred sixty-six thousand, sixty-six".