666460644427013 has 8 divisors (see below), whose sum is σ = 668063640293376. Its totient is φ = 664857743130000.

The previous prime is 666460644426989. The next prime is 666460644427037. The reversal of 666460644427013 is 310724446064666.

It is an interprime number because it is at equal distance from previous prime (666460644426989) and next prime (666460644427037).

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

It is a cyclic number.

It is not a de Polignac number, because 666460644427013 - 2²⁰ = 666460643378437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666460644420013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9520613 + ... + 37730138.

It is an arithmetic number, because the mean of its divisors is an integer number (83507955036672).

Almost surely, 2^{666460644427013} is an apocalyptic number.

It is an amenable number.

666460644427013 is a deficient number, since it is larger than the sum of its proper divisors (1602995866363).

666460644427013 is a wasteful number, since it uses less digits than its factorization.

666460644427013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47284675.

The product of its (nonzero) digits is 83607552, while the sum is 59.

The spelling of 666460644427013 in words is "six hundred sixty-six trillion, four hundred sixty billion, six hundred forty-four million, four hundred twenty-seven thousand, thirteen".