666082012 has 12 divisors (see below), whose sum is σ = 1226993320. Its totient is φ = 315512496.

The previous prime is 666082009. The next prime is 666082013. The reversal of 666082012 is 210280666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666082013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4382043 + ... + 4382194.

Almost surely, 2^666082012 is an apocalyptic number.

It is an amenable number.

666082012 is a deficient number, since it is larger than the sum of its proper divisors (560911308).

666082012 is a wasteful number, since it uses less digits than its factorization.

666082012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8764260 (or 8764258 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 666082012 is about 25808.5647024394. The cubic root of 666082012 is about 873.3250186001.

The spelling of 666082012 in words is "six hundred sixty-six million, eighty-two thousand, twelve".