665030448 has 120 divisors (see below), whose sum is σ = 1922251968. Its totient is φ = 214511616.

The previous prime is 665030447. The next prime is 665030459. The reversal of 665030448 is 844030566.

665030448 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 (36).

It is not an unprimeable number, because it can be changed into a prime (665030447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 655990 + ... + 657002.

Almost surely, 2^665030448 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 665030448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (961125984).

665030448 is an abundant number, since it is smaller than the sum of its proper divisors (1257221520).

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

665030448 is a wasteful number, since it uses less digits than its factorization.

665030448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171 (or 1162 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 665030448 is about 25788.1842710959. The cubic root of 665030448 is about 872.8651949162.

The spelling of 665030448 in words is "six hundred sixty-five million, thirty thousand, four hundred forty-eight".