663922224 has 160 divisors (see below), whose sum is σ = 2189383680. Its totient is φ = 188697600.

The previous prime is 663922219. The next prime is 663922243. The reversal of 663922224 is 422229366.

It is a super-2 number, since 2×663922224² = 881585439042212352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 728329 + ... + 729239.

It is an arithmetic number, because the mean of its divisors is an integer number (13683648).

Almost surely, 2^663922224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 663922224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1094691840).

663922224 is an abundant number, since it is smaller than the sum of its proper divisors (1525461456).

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

663922224 is a wasteful number, since it uses less digits than its factorization.

663922224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176 (or 1164 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 663922224 is about 25766.6882621729. The cubic root of 663922224 is about 872.3800702693.

The spelling of 663922224 in words is "six hundred sixty-three million, nine hundred twenty-two thousand, two hundred twenty-four".