663320022 has 16 divisors (see below), whose sum is σ = 1329796272. Its totient is φ = 220580640.

The previous prime is 663320003. The next prime is 663320027. The reversal of 663320022 is 220023366.

It is a junction number, because it is equal to n+sod(n) for n = 663319974 and 663320001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663320027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128773 + ... + 133824.

It is an arithmetic number, because the mean of its divisors is an integer number (83112267).

Almost surely, 2^663320022 is an apocalyptic number.

663320022 is an abundant number, since it is smaller than the sum of its proper divisors (666476250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663320022 is a wasteful number, since it uses less digits than its factorization.

663320022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263023.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 663320022 is about 25754.9999417589. Note that the first 4 decimals coincide. The cubic root of 663320022 is about 872.1162301581.

Adding to 663320022 its reverse (220023366), we get a palindrome (883343388).

The spelling of 663320022 in words is "six hundred sixty-three million, three hundred twenty thousand, twenty-two".