663241722 has 64 divisors (see below), whose sum is σ = 1591640064. Its totient is φ = 181563840.

The previous prime is 663241703. The next prime is 663241729. The reversal of 663241722 is 227142366.

663241722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (663241729) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32103 + ... + 48549.

It is an arithmetic number, because the mean of its divisors is an integer number (24869376).

Almost surely, 2^663241722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 663241722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (795820032).

663241722 is an abundant number, since it is smaller than the sum of its proper divisors (928398342).

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

663241722 is a wasteful number, since it uses less digits than its factorization.

663241722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16523.

The product of its digits is 24192, while the sum is 33.

The square root of 663241722 is about 25753.4798037081. The cubic root of 663241722 is about 872.0819131942.

The spelling of 663241722 in words is "six hundred sixty-three million, two hundred forty-one thousand, seven hundred twenty-two".