222551116666 has 8 divisors (see below), whose sum is σ = 336374970624. Its totient is φ = 110426126460.

The previous prime is 222551116651. The next prime is 222551116679. The reversal of 222551116666 is 666611155222.

222551116666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a zygodrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424715610 + ... + 424716133.

It is an arithmetic number, because the mean of its divisors is an integer number (42046871328).

Almost surely, 2^222551116666 is an apocalyptic number.

222551116666 is a deficient number, since it is larger than the sum of its proper divisors (113823853958).

222551116666 is a wasteful number, since it uses less digits than its factorization.

222551116666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849431876.

The product of its digits is 259200, while the sum is 43.

The spelling of 222551116666 in words is "two hundred twenty-two billion, five hundred fifty-one million, one hundred sixteen thousand, six hundred sixty-six".