664712223353635 has 16 divisors (see below), whose sum is σ = 799883627212800. Its totient is φ = 530283832115296.

The previous prime is 664712223353609. The next prime is 664712223353653. The reversal of 664712223353635 is 536353322217466.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-664712223353635 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 664712223353635.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208734486 + ... + 211895044.

It is an arithmetic number, because the mean of its divisors is an integer number (49992726700800).

Almost surely, 2^{664712223353635} is an apocalyptic number.

664712223353635 is a deficient number, since it is larger than the sum of its proper divisors (135171403859165).

664712223353635 is a wasteful number, since it uses less digits than its factorization.

664712223353635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3278090.

The product of its digits is 97977600, while the sum is 58.

The spelling of 664712223353635 in words is "six hundred sixty-four trillion, seven hundred twelve billion, two hundred twenty-three million, three hundred fifty-three thousand, six hundred thirty-five".