663540104 has 32 divisors (see below), whose sum is σ = 1259496000. Its totient is φ = 327691200.

The previous prime is 663540103. The next prime is 663540121. The reversal of 663540104 is 401045366.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (663540103) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 473597 + ... + 474995.

It is an arithmetic number, because the mean of its divisors is an integer number (39359250).

Almost surely, 2^663540104 is an apocalyptic number.

It is an amenable number.

663540104 is a deficient number, since it is larger than the sum of its proper divisors (595955896).

663540104 is a wasteful number, since it uses less digits than its factorization.

663540104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093 (or 2089 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 663540104 is about 25759.2721946875. The cubic root of 663540104 is about 872.2126722244.

The spelling of 663540104 in words is "six hundred sixty-three million, five hundred forty thousand, one hundred four".