663552001 has 8 divisors (see below), whose sum is σ = 791316864. Its totient is φ = 544030080.

The previous prime is 663551983. The next prime is 663552011. The reversal of 663552001 is 100255366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 663552001 - 2⁷ = 663551873 is a prime.

It is a super-2 number, since 2×663552001² = 880602516062208002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663552011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2060560 + ... + 2060881.

It is an arithmetic number, because the mean of its divisors is an integer number (98914608).

It is a Proth number, since it is equal to 10125 ⋅ 2¹⁶ + 1 and 10125 < 2¹⁶.

Almost surely, 2^663552001 is an apocalyptic number.

It is an amenable number.

663552001 is a deficient number, since it is larger than the sum of its proper divisors (127764863).

663552001 is a wasteful number, since it uses less digits than its factorization.

663552001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4121471.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 663552001 is about 25759.5031202079. The cubic root of 663552001 is about 872.2178849976.

The spelling of 663552001 in words is "six hundred sixty-three million, five hundred fifty-two thousand, one".