663016420 has 48 divisors (see below), whose sum is σ = 1521273600. Its totient is φ = 240721920.

The previous prime is 663016369. The next prime is 663016421. The reversal of 663016420 is 24610366.

663016420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (663016421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167221 + ... + 171139.

It is an arithmetic number, because the mean of its divisors is an integer number (31693200).

Almost surely, 2^663016420 is an apocalyptic number.

It is an amenable number.

663016420 is an abundant number, since it is smaller than the sum of its proper divisors (858257180).

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

663016420 is a wasteful number, since it uses less digits than its factorization.

663016420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4708 (or 4706 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 663016420 is about 25749.1052271725. The cubic root of 663016420 is about 871.9831538002.

Adding to 663016420 its reverse (24610366), we get a palindrome (687626786).

The spelling of 663016420 in words is "six hundred sixty-three million, sixteen thousand, four hundred twenty".