1665080223 has 8 divisors (see below), whose sum is σ = 2227111728. Its totient is φ = 1106551104.

The previous prime is 1665080203. The next prime is 1665080227. The reversal of 1665080223 is 3220805661.

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

It is not a de Polignac number, because 1665080223 - 2⁵ = 1665080191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1665080227) 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, 874486 + ... + 876387.

It is an arithmetic number, because the mean of its divisors is an integer number (278388966).

Almost surely, 2^1665080223 is an apocalyptic number.

1665080223 is a deficient number, since it is larger than the sum of its proper divisors (562031505).

1665080223 is a wasteful number, since it uses less digits than its factorization.

1665080223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751193.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1665080223 is about 40805.3945330761. The cubic root of 1665080223 is about 1185.2547946831.

Adding to 1665080223 its reverse (3220805661), we get a palindrome (4885885884).

The spelling of 1665080223 in words is "one billion, six hundred sixty-five million, eighty thousand, two hundred twenty-three".