666450014 has 8 divisors (see below), whose sum is σ = 1058479488. Its totient is φ = 313623520.

The previous prime is 666450013. The next prime is 666450053. The reversal of 666450014 is 410054666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666450011) by changing a digit.

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, 9800702 + ... + 9800769.

It is an arithmetic number, because the mean of its divisors is an integer number (132309936).

Almost surely, 2^666450014 is an apocalyptic number.

666450014 is a deficient number, since it is larger than the sum of its proper divisors (392029474).

666450014 is a wasteful number, since it uses less digits than its factorization.

666450014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19601490.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 666450014 is about 25815.6931729520. The cubic root of 666450014 is about 873.4858227147.

The spelling of 666450014 in words is "six hundred sixty-six million, four hundred fifty thousand, fourteen".