663085040 has 40 divisors (see below), whose sum is σ = 1591410048. Its totient is φ = 256677120.

The previous prime is 663085021. The next prime is 663085063. The reversal of 663085040 is 40580366.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 663084988 and 663085006.

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, 131207 + ... + 136166.

Almost surely, 2^663085040 is an apocalyptic number.

It is an amenable number.

663085040 is an abundant number, since it is smaller than the sum of its proper divisors (928325008).

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

663085040 is a wasteful number, since it uses less digits than its factorization.

663085040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267417 (or 267411 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 663085040 is about 25750.4376661835. The cubic root of 663085040 is about 872.0132352170.

The spelling of 663085040 in words is "six hundred sixty-three million, eighty-five thousand, forty".