222017065666 has 8 divisors (see below), whose sum is σ = 363300652944. Its totient is φ = 100916848020.

The previous prime is 222017065601. The next prime is 222017065693. The reversal of 222017065666 is 666560710222.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5045842380 + ... + 5045842423.

It is an arithmetic number, because the mean of its divisors is an integer number (45412581618).

Almost surely, 2^222017065666 is an apocalyptic number.

222017065666 is a deficient number, since it is larger than the sum of its proper divisors (141283587278).

222017065666 is a wasteful number, since it uses less digits than its factorization.

222017065666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10091684816.

The product of its (nonzero) digits is 362880, while the sum is 43.

Adding to 222017065666 its reverse (666560710222), we get a palindrome (888577775888).

The spelling of 222017065666 in words is "two hundred twenty-two billion, seventeen million, sixty-five thousand, six hundred sixty-six".