223086685373666 has 16 divisors (see below), whose sum is σ = 335284626660984. Its totient is φ = 111325356345984.

The previous prime is 223086685373653. The next prime is 223086685373683. The reversal of 223086685373666 is 666373586680322.

It can be written as a sum of positive squares in 4 ways, for example, as 131187908005441 + 91898777368225 = 11453729^2 + 9586385^2 .

It is a super-3 number, since 3×223086685373666³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 223086685373666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51204281 + ... + 55389996.

Almost surely, 2^{223086685373666} is an apocalyptic number.

223086685373666 is a deficient number, since it is larger than the sum of its proper divisors (112197941287318).

223086685373666 is a wasteful number, since it uses less digits than its factorization.

223086685373666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106596325.

The product of its (nonzero) digits is 1881169920, while the sum is 71.

The spelling of 223086685373666 in words is "two hundred twenty-three trillion, eighty-six billion, six hundred eighty-five million, three hundred seventy-three thousand, six hundred sixty-six".