660066104 has 16 divisors (see below), whose sum is σ = 1237938120. Its totient is φ = 329949280.

The previous prime is 660066079. The next prime is 660066107. The reversal of 660066104 is 401660066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660066107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34247 + ... + 49929.

Almost surely, 2^660066104 is an apocalyptic number.

It is an amenable number.

660066104 is a deficient number, since it is larger than the sum of its proper divisors (577872016).

660066104 is a wasteful number, since it uses less digits than its factorization.

660066104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20950 (or 20946 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 660066104 is about 25691.7516724726. The cubic root of 660066104 is about 870.6878358375.

The spelling of 660066104 in words is "six hundred sixty million, sixty-six thousand, one hundred four".