226001663999 has 4 divisors (see below), whose sum is σ = 237896488440. Its totient is φ = 214106839560.

The previous prime is 226001663989. The next prime is 226001664017. The reversal of 226001663999 is 999366100622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 226001663999 - 2⁸ = 226001663743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 226001663999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226001663929) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5947412192 + ... + 5947412229.

It is an arithmetic number, because the mean of its divisors is an integer number (59474122110).

Almost surely, 2^226001663999 is an apocalyptic number.

226001663999 is a deficient number, since it is larger than the sum of its proper divisors (11894824441).

226001663999 is a wasteful number, since it uses less digits than its factorization.

226001663999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11894824440.

The product of its (nonzero) digits is 1889568, while the sum is 53.

The spelling of 226001663999 in words is "two hundred twenty-six billion, one million, six hundred sixty-three thousand, nine hundred ninety-nine".