6663711320 has 32 divisors (see below), whose sum is σ = 17135258400. Its totient is φ = 2284700928.

The previous prime is 6663711311. The next prime is 6663711343. The reversal of 6663711320 is 231173666.

It is a super-2 number, since 2×6663711320² = 88810097112592284800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11899205 + ... + 11899764.

It is an arithmetic number, because the mean of its divisors is an integer number (535476825).

Almost surely, 2^6663711320 is an apocalyptic number.

It is an amenable number.

6663711320 is an abundant number, since it is smaller than the sum of its proper divisors (10471547080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6663711320 is a wasteful number, since it uses less digits than its factorization.

6663711320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23798987 (or 23798983 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 6663711320 is about 81631.5583582722. The cubic root of 6663711320 is about 1881.7939078874.

Adding to 6663711320 its reverse (231173666), we get a palindrome (6894884986).

The spelling of 6663711320 in words is "six billion, six hundred sixty-three million, seven hundred eleven thousand, three hundred twenty".