223227461261556 has 120 divisors (see below), whose sum is σ = 589245945672384. Its totient is φ = 73684279946880.

The previous prime is 223227461261521. The next prime is 223227461261569. The reversal of 223227461261556 is 655162164722322.

223227461261556 is a `hidden beast` number, since 2 + 2 + 3 + 2 + 2 + 7 + 4 + 6 + 12 + 615 + 5 + 6 = 666.

It is a super-3 number, since 3×223227461261556³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1193055571 + ... + 1193242661.

Almost surely, 2^{223227461261556} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223227461261556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294622972836192).

223227461261556 is an abundant number, since it is smaller than the sum of its proper divisors (366018484410828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223227461261556 is a wasteful number, since it uses less digits than its factorization.

223227461261556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222963 (or 222952 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 54.

The spelling of 223227461261556 in words is "two hundred twenty-three trillion, two hundred twenty-seven billion, four hundred sixty-one million, two hundred sixty-one thousand, five hundred fifty-six".