663384411 has 48 divisors (see below), whose sum is σ = 1066141440. Its totient is φ = 410922720.

The previous prime is 663384383. The next prime is 663384419. The reversal of 663384411 is 114483366.

It is a happy number.

663384411 is a `hidden beast` number, since 6 + 633 + 8 + 4 + 4 + 11 = 666.

It is not a de Polignac number, because 663384411 - 2⁶ = 663384347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (663384419) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 243346 + ... + 246056.

It is an arithmetic number, because the mean of its divisors is an integer number (22211280).

Almost surely, 2^663384411 is an apocalyptic number.

663384411 is a deficient number, since it is larger than the sum of its proper divisors (402757029).

663384411 is a wasteful number, since it uses less digits than its factorization.

663384411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2798 (or 2786 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 663384411 is about 25756.2499405484. The cubic root of 663384411 is about 872.1444482496.

The spelling of 663384411 in words is "six hundred sixty-three million, three hundred eighty-four thousand, four hundred eleven".