663040524 has 48 divisors (see below), whose sum is σ = 1603137536. Its totient is φ = 213062400.

The previous prime is 663040519. The next prime is 663040583. The reversal of 663040524 is 425040366.

It is a junction number, because it is equal to n+sod(n) for n = 663040491 and 663040500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97524 + ... + 104100.

Almost surely, 2^663040524 is an apocalyptic number.

It is an amenable number.

663040524 is an abundant number, since it is smaller than the sum of its proper divisors (940097012).

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

663040524 is a wasteful number, since it uses less digits than its factorization.

663040524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6886 (or 6884 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 663040524 is about 25749.5732780176. The cubic root of 663040524 is about 871.9937206713.

The spelling of 663040524 in words is "six hundred sixty-three million, forty thousand, five hundred twenty-four".