223104644361661 has 8 divisors (see below), whose sum is σ = 224234306451200. Its totient is φ = 221975067604752.

The previous prime is 223104644361631. The next prime is 223104644361713. The reversal of 223104644361661 is 166163446401322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223104644361661 - 2⁹ = 223104644361149 is a prime.

It is a super-3 number, since 3×223104644361661³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223104644361631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16087605 + ... + 26552218.

It is an arithmetic number, because the mean of its divisors is an integer number (28029288306400).

Almost surely, 2^{223104644361661} is an apocalyptic number.

It is an amenable number.

223104644361661 is a deficient number, since it is larger than the sum of its proper divisors (1129662089539).

223104644361661 is a wasteful number, since it uses less digits than its factorization.

223104644361661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42666315.

The product of its (nonzero) digits is 2985984, while the sum is 49.

The spelling of 223104644361661 in words is "two hundred twenty-three trillion, one hundred four billion, six hundred forty-four million, three hundred sixty-one thousand, six hundred sixty-one".