6663553323 has 16 divisors (see below), whose sum is σ = 10481534976. Its totient is φ = 3684913920.

The previous prime is 6663553297. The next prime is 6663553349. The reversal of 6663553323 is 3233553666.

It is an interprime number because it is at equal distance from previous prime (6663553297) and next prime (6663553349).

It is not a de Polignac number, because 6663553323 - 2¹⁸ = 6663291179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6663553373) 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, 5117286 + ... + 5118587.

It is an arithmetic number, because the mean of its divisors is an integer number (655095936).

Almost surely, 2^6663553323 is an apocalyptic number.

6663553323 is a deficient number, since it is larger than the sum of its proper divisors (3817981653).

6663553323 is a wasteful number, since it uses less digits than its factorization.

6663553323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10235914.

The product of its digits is 874800, while the sum is 42.

The square root of 6663553323 is about 81630.5906079332. The cubic root of 6663553323 is about 1881.7790352873.

The spelling of 6663553323 in words is "six billion, six hundred sixty-three million, five hundred fifty-three thousand, three hundred twenty-three".