2003616663 has 8 divisors (see below), whose sum is σ = 2709115776. Its totient is φ = 1316931000.

The previous prime is 2003616653. The next prime is 2003616677. The reversal of 2003616663 is 3666163002.

It is a happy number.

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

It is not a de Polignac number, because 2003616663 - 2⁶ = 2003616599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003616613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4703113 + ... + 4703538.

It is an arithmetic number, because the mean of its divisors is an integer number (338639472).

Almost surely, 2^2003616663 is an apocalyptic number.

2003616663 is a deficient number, since it is larger than the sum of its proper divisors (705499113).

2003616663 is an equidigital number, since it uses as much as digits as its factorization.

2003616663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9406725.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 2003616663 is about 44761.7768078972. The cubic root of 2003616663 is about 1260.6800442148.

Adding to 2003616663 its reverse (3666163002), we get a palindrome (5669779665).

The spelling of 2003616663 in words is "two billion, three million, six hundred sixteen thousand, six hundred sixty-three".