667210704217 has 8 divisors (see below), whose sum is σ = 678162166272. Its totient is φ = 656259680400.

The previous prime is 667210704157. The next prime is 667210704239. The reversal of 667210704217 is 712407012766.

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 667210704217 - 2¹⁹ = 667210179929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667210707217) 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, 4625418 + ... + 4767484.

It is an arithmetic number, because the mean of its divisors is an integer number (84770270784).

Almost surely, 2^667210704217 is an apocalyptic number.

It is an amenable number.

667210704217 is a deficient number, since it is larger than the sum of its proper divisors (10951462055).

667210704217 is a wasteful number, since it uses less digits than its factorization.

667210704217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219119.

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 667210704217 in words is "six hundred sixty-seven billion, two hundred ten million, seven hundred four thousand, two hundred seventeen".