226641417661 has 4 divisors (see below), whose sum is σ = 226863398524. Its totient is φ = 226419436800.

The previous prime is 226641417659. The next prime is 226641417689. The reversal of 226641417661 is 166714146622.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 145199102500 + 81442315161 = 381050^2 + 285381^2 .

It is a cyclic number.

It is not a de Polignac number, because 226641417661 - 2¹ = 226641417659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226641417631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110988900 + ... + 110990941.

It is an arithmetic number, because the mean of its divisors is an integer number (56715849631).

Almost surely, 2^226641417661 is an apocalyptic number.

It is an amenable number.

226641417661 is a deficient number, since it is larger than the sum of its proper divisors (221980863).

226641417661 is a wasteful number, since it uses less digits than its factorization.

226641417661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221980862.

The product of its digits is 580608, while the sum is 46.

The spelling of 226641417661 in words is "two hundred twenty-six billion, six hundred forty-one million, four hundred seventeen thousand, six hundred sixty-one".