663540118 has 16 divisors (see below), whose sum is σ = 1008970560. Its totient is φ = 327225600.

The previous prime is 663540103. The next prime is 663540121. The reversal of 663540118 is 811045366.

It is a happy number.

663540118 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216678 + ... + 219718.

It is an arithmetic number, because the mean of its divisors is an integer number (63060660).

Almost surely, 2^663540118 is an apocalyptic number.

663540118 is a deficient number, since it is larger than the sum of its proper divisors (345430442).

663540118 is a wasteful number, since it uses less digits than its factorization.

663540118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4503.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 663540118 is about 25759.2724664343. The cubic root of 663540118 is about 872.2126783587.

The spelling of 663540118 in words is "six hundred sixty-three million, five hundred forty thousand, one hundred eighteen".