663351201 has 10 divisors (see below), whose sum is σ = 990932162. Its totient is φ = 442234080.

The previous prime is 663351179. The next prime is 663351217. The reversal of 663351201 is 102153366.

663351201 is a `hidden beast` number, since 6 + 633 + 5 + 1 + 20 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 652853601 + 10497600 = 25551^2 + 3240^2 .

It is not a de Polignac number, because 663351201 - 2¹⁵ = 663318433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663351701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4094680 + ... + 4094841.

Almost surely, 2^663351201 is an apocalyptic number.

It is an amenable number.

663351201 is a deficient number, since it is larger than the sum of its proper divisors (327580961).

663351201 is an equidigital number, since it uses as much as digits as its factorization.

663351201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8189533 (or 8189524 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 663351201 is about 25755.6052345892. The cubic root of 663351201 is about 872.1298943951.

The spelling of 663351201 in words is "six hundred sixty-three million, three hundred fifty-one thousand, two hundred one".