663415012 has 12 divisors (see below), whose sum is σ = 1250282236. Its totient is φ = 306191520.

The previous prime is 663414979. The next prime is 663415019. The reversal of 663415012 is 210514366.

663415012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 237653056 + 425761956 = 15416^2 + 20634^2 .

It is not an unprimeable number, because it can be changed into a prime (663415019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6378939 + ... + 6379042.

Almost surely, 2^663415012 is an apocalyptic number.

It is an amenable number.

663415012 is a deficient number, since it is larger than the sum of its proper divisors (586867224).

663415012 is a wasteful number, since it uses less digits than its factorization.

663415012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12757998 (or 12757996 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 663415012 is about 25756.8439836871. The cubic root of 663415012 is about 872.1578583134.

Adding to 663415012 its reverse (210514366), we get a palindrome (873929378).

The spelling of 663415012 in words is "six hundred sixty-three million, four hundred fifteen thousand, twelve".