227666018219868 has 192 divisors, whose sum is σ = 638126262592000. Its totient is φ = 69948881468928.

The previous prime is 227666018219807. The next prime is 227666018219873. The reversal of 227666018219868 is 868912810666722.

227666018219868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (72) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 227666018219796 and 227666018219805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4094022048 + ... + 4094077656.

Almost surely, 2^{227666018219868} 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 227666018219868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319063131296000).

227666018219868 is an abundant number, since it is smaller than the sum of its proper divisors (410460244372132).

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

227666018219868 is a wasteful number, since it uses less digits than its factorization.

227666018219868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109601 (or 109593 counting only the distinct ones).

The product of its (nonzero) digits is 334430208, while the sum is 72.

The spelling of 227666018219868 in words is "two hundred twenty-seven trillion, six hundred sixty-six billion, eighteen million, two hundred nineteen thousand, eight hundred sixty-eight".