6665680803 has 8 divisors (see below), whose sum is σ = 8888320000. Its totient is φ = 4443414408.

The previous prime is 6665680799. The next prime is 6665680811. The reversal of 6665680803 is 3080865666.

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

It is not a de Polignac number, because 6665680803 - 2² = 6665680799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6665680873) 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, 48403 + ... + 125196.

It is an arithmetic number, because the mean of its divisors is an integer number (1111040000).

Almost surely, 2^6665680803 is an apocalyptic number.

6665680803 is a deficient number, since it is larger than the sum of its proper divisors (2222639197).

6665680803 is a wasteful number, since it uses less digits than its factorization.

6665680803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186401.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The square root of 6665680803 is about 81643.6207122149. The cubic root of 6665680803 is about 1881.9792798656.

The spelling of 6665680803 in words is "six billion, six hundred sixty-five million, six hundred eighty thousand, eight hundred three".