305166666 has 32 divisors (see below), whose sum is σ = 720027648. Its totient is φ = 84377520.

The previous prime is 305166661. The next prime is 305166679. The reversal of 305166666 is 666661503.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (305166661) 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, 115890 + ... + 118493.

It is an arithmetic number, because the mean of its divisors is an integer number (22500864).

Almost surely, 2^305166666 is an apocalyptic number.

305166666 is an abundant number, since it is smaller than the sum of its proper divisors (414860982).

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

305166666 is a wasteful number, since it uses less digits than its factorization.

305166666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234426.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 305166666 is about 17469.0201785904. The cubic root of 305166666 is about 673.2541373923.

The spelling of 305166666 in words is "three hundred five million, one hundred sixty-six thousand, six hundred sixty-six".