1066221363 has 8 divisors (see below), whose sum is σ = 1421784000. Its totient is φ = 710736488.

The previous prime is 1066221361. The next prime is 1066221389. The reversal of 1066221363 is 3631226601.

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 1066221363 - 2¹ = 1066221361 is a prime.

It is a super-2 number, since 2×1066221363² = 2273655989835155538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1066221363.

It is not an unprimeable number, because it can be changed into a prime (1066221361) 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, 32008 + ... + 56186.

It is an arithmetic number, because the mean of its divisors is an integer number (177723000).

Almost surely, 2^1066221363 is an apocalyptic number.

1066221363 is a deficient number, since it is larger than the sum of its proper divisors (355562637).

1066221363 is a wasteful number, since it uses less digits than its factorization.

1066221363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38881.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 1066221363 is about 32653.0452331785. The cubic root of 1066221363 is about 1021.6037065676.

Adding to 1066221363 its reverse (3631226601), we get a palindrome (4697447964).

The spelling of 1066221363 in words is "one billion, sixty-six million, two hundred twenty-one thousand, three hundred sixty-three".