665213564456714 has 32 divisors (see below), whose sum is σ = 1230821740108800. Its totient is φ = 262575304492032.

The previous prime is 665213564456699. The next prime is 665213564456789. The reversal of 665213564456714 is 417654465312566.

It is a happy number.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4070095994 + ... + 4070259429.

It is an arithmetic number, because the mean of its divisors is an integer number (38463179378400).

Almost surely, 2^{665213564456714} is an apocalyptic number.

665213564456714 is a deficient number, since it is larger than the sum of its proper divisors (565608175652086).

665213564456714 is a wasteful number, since it uses less digits than its factorization.

665213564456714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8140355894.

The product of its digits is 435456000, while the sum is 65.

The spelling of 665213564456714 in words is "six hundred sixty-five trillion, two hundred thirteen billion, five hundred sixty-four million, four hundred fifty-six thousand, seven hundred fourteen".