223605881856 has 1408 divisors, whose sum is σ = 872513280000. Its totient is φ = 56184274944.

The previous prime is 223605881831. The next prime is 223605881861. The reversal of 223605881856 is 658188506322.

223605881856 is a `hidden beast` number, since 2 + 2 + 3 + 6 + 0 + 588 + 1 + 8 + 56 = 666.

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 127 ways as a sum of consecutive naturals, for example, 3063094236 + ... + 3063094308.

Almost surely, 2^223605881856 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 223605881856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436256640000).

223605881856 is an abundant number, since it is smaller than the sum of its proper divisors (648907398144).

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

223605881856 is a wasteful number, since it uses less digits than its factorization.

223605881856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The spelling of 223605881856 in words is "two hundred twenty-three billion, six hundred five million, eight hundred eighty-one thousand, eight hundred fifty-six".