666360460 has 12 divisors (see below), whose sum is σ = 1399357008. Its totient is φ = 266544176.

The previous prime is 666360449. The next prime is 666360473. The reversal of 666360460 is 64063666.

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, 16658992 + ... + 16659031.

It is an arithmetic number, because the mean of its divisors is an integer number (116613084).

Almost surely, 2^666360460 is an apocalyptic number.

It is an amenable number.

666360460 is an abundant number, since it is smaller than the sum of its proper divisors (732996548).

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

666360460 is a wasteful number, since it uses less digits than its factorization.

666360460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33318032 (or 33318030 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 37.

The square root of 666360460 is about 25813.9586270684. The cubic root of 666360460 is about 873.4466961727.

The spelling of 666360460 in words is "six hundred sixty-six million, three hundred sixty thousand, four hundred sixty".