866222063 has 8 divisors (see below), whose sum is σ = 1048201632. Its totient is φ = 698800896.

The previous prime is 866222053. The next prime is 866222087. The reversal of 866222063 is 360222668.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 866222063 - 2¹² = 866217967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866222053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3639470 + ... + 3639707.

It is an arithmetic number, because the mean of its divisors is an integer number (131025204).

Almost surely, 2^866222063 is an apocalyptic number.

866222063 is a deficient number, since it is larger than the sum of its proper divisors (181979569).

866222063 is a wasteful number, since it uses less digits than its factorization.

866222063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7279201.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 866222063 is about 29431.6507012434. The cubic root of 866222063 is about 953.2564380277.

The spelling of 866222063 in words is "eight hundred sixty-six million, two hundred twenty-two thousand, sixty-three".