663204741 has 16 divisors (see below), whose sum is σ = 932031360. Its totient is φ = 418832960.

The previous prime is 663204721. The next prime is 663204809. The reversal of 663204741 is 147402366.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 663204741 - 2¹³ = 663196549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663204721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67305 + ... + 76526.

It is an arithmetic number, because the mean of its divisors is an integer number (58251960).

Almost surely, 2^663204741 is an apocalyptic number.

It is an amenable number.

663204741 is a deficient number, since it is larger than the sum of its proper divisors (268826619).

663204741 is a wasteful number, since it uses less digits than its factorization.

663204741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143916.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 663204741 is about 25752.7618130561. The cubic root of 663204741 is about 872.0657043925.

The spelling of 663204741 in words is "six hundred sixty-three million, two hundred four thousand, seven hundred forty-one".