666284484 has 24 divisors (see below), whose sum is σ = 1590820000. Its totient is φ = 216929664.

The previous prime is 666284477. The next prime is 666284491. The reversal of 666284484 is 484482666.

It is an interprime number because it is at equal distance from previous prime (666284477) and next prime (666284491).

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, 645109 + ... + 646140.

Almost surely, 2^666284484 is an apocalyptic number.

It is an amenable number.

666284484 is an abundant number, since it is smaller than the sum of its proper divisors (924535516).

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

666284484 is a wasteful number, since it uses less digits than its factorization.

666284484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291299 (or 1291297 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 48.

The square root of 666284484 is about 25812.4869782049. The cubic root of 666284484 is about 873.4134991708.

The spelling of 666284484 in words is "six hundred sixty-six million, two hundred eighty-four thousand, four hundred eighty-four".