666430246 has 16 divisors (see below), whose sum is σ = 1021742640. Its totient is φ = 325910880.

The previous prime is 666430231. The next prime is 666430279. The reversal of 666430246 is 642034666.

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 7 ways as a sum of consecutive naturals, for example, 6580 + ... + 37096.

It is an arithmetic number, because the mean of its divisors is an integer number (63858915).

Almost surely, 2^666430246 is an apocalyptic number.

666430246 is a deficient number, since it is larger than the sum of its proper divisors (355312394).

666430246 is a wasteful number, since it uses less digits than its factorization.

666430246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30759.

The product of its (nonzero) digits is 124416, while the sum is 37.

The square root of 666430246 is about 25815.3103022218. The cubic root of 666430246 is about 873.4771862888.

The spelling of 666430246 in words is "six hundred sixty-six million, four hundred thirty thousand, two hundred forty-six".