305060666 has 4 divisors (see below), whose sum is σ = 457591002. Its totient is φ = 152530332.

The previous prime is 305060647. The next prime is 305060669. The reversal of 305060666 is 666060503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 196588441 + 108472225 = 14021^2 + 10415^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (305060669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76265165 + ... + 76265168.

Almost surely, 2^305060666 is an apocalyptic number.

305060666 is a deficient number, since it is larger than the sum of its proper divisors (152530336).

305060666 is a wasteful number, since it uses less digits than its factorization.

305060666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152530335.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 305060666 is about 17465.9859727414. The cubic root of 305060666 is about 673.1761764931.

The spelling of 305060666 in words is "three hundred five million, sixty thousand, six hundred sixty-six".