666246068 has 12 divisors (see below), whose sum is σ = 1169455392. Its totient is φ = 332115960.

The previous prime is 666246011. The next prime is 666246071. The reversal of 666246068 is 860642666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250280 + ... + 252927.

It is an arithmetic number, because the mean of its divisors is an integer number (97454616).

Almost surely, 2^666246068 is an apocalyptic number.

It is an amenable number.

666246068 is a deficient number, since it is larger than the sum of its proper divisors (503209324).

666246068 is a wasteful number, since it uses less digits than its factorization.

666246068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503542 (or 503540 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 44.

The square root of 666246068 is about 25811.7428315098. The cubic root of 666246068 is about 873.3967126986.

The spelling of 666246068 in words is "six hundred sixty-six million, two hundred forty-six thousand, sixty-eight".