505454666 has 8 divisors (see below), whose sum is σ = 764152320. Its totient is φ = 250737228.

The previous prime is 505454639. The next prime is 505454713. The reversal of 505454666 is 666454505.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994736 + ... + 995243.

It is an arithmetic number, because the mean of its divisors is an integer number (95519040).

Almost surely, 2^505454666 is an apocalyptic number.

505454666 is a deficient number, since it is larger than the sum of its proper divisors (258697654).

505454666 is a wasteful number, since it uses less digits than its factorization.

505454666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990108.

The product of its (nonzero) digits is 432000, while the sum is 41.

The square root of 505454666 is about 22482.3189640215. The cubic root of 505454666 is about 796.5763409748.

The spelling of 505454666 in words is "five hundred five million, four hundred fifty-four thousand, six hundred sixty-six".