666382492 has 12 divisors (see below), whose sum is σ = 1168076056. Its totient is φ = 332646480.

The previous prime is 666382477. The next prime is 666382513. The reversal of 666382492 is 294283666.

It is a congruent number.

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, 133434 + ... + 138337.

Almost surely, 2^666382492 is an apocalyptic number.

It is an amenable number.

666382492 is a deficient number, since it is larger than the sum of its proper divisors (501693564).

666382492 is a wasteful number, since it uses less digits than its factorization.

666382492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272388 (or 272386 counting only the distinct ones).

The product of its digits is 746496, while the sum is 46.

The square root of 666382492 is about 25814.3853694021. The cubic root of 666382492 is about 873.4563223769.

The spelling of 666382492 in words is "six hundred sixty-six million, three hundred eighty-two thousand, four hundred ninety-two".