666460644427014 has 64 divisors (see below), whose sum is σ = 1393116612249600. Its totient is φ = 212279188036608.

The previous prime is 666460644426989. The next prime is 666460644427037. The reversal of 666460644427014 is 410724446064666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1727557357 + ... + 1727943095.

It is an arithmetic number, because the mean of its divisors is an integer number (21767447066400).

Almost surely, 2^{666460644427014} is an apocalyptic number.

666460644427014 is an abundant number, since it is smaller than the sum of its proper divisors (726655967822586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

666460644427014 is a wasteful number, since it uses less digits than its factorization.

666460644427014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488237.

The product of its (nonzero) digits is 111476736, while the sum is 60.

The spelling of 666460644427014 in words is "six hundred sixty-six trillion, four hundred sixty billion, six hundred forty-four million, four hundred twenty-seven thousand, fourteen".