6684557011 has 8 divisors (see below), whose sum is σ = 7489332144. Its totient is φ = 5912629920.

The previous prime is 6684556997. The next prime is 6684557041. The reversal of 6684557011 is 1107554866.

6684557011 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6684557011 - 2⁷ = 6684556883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6684557041) 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, 8211580 + ... + 8212393.

It is an arithmetic number, because the mean of its divisors is an integer number (936166518).

Almost surely, 2^6684557011 is an apocalyptic number.

6684557011 is a deficient number, since it is larger than the sum of its proper divisors (804775133).

6684557011 is a wasteful number, since it uses less digits than its factorization.

6684557011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16424021.

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 6684557011 is about 81759.1402290900. The cubic root of 6684557011 is about 1883.7540999011.

The spelling of 6684557011 in words is "six billion, six hundred eighty-four million, five hundred fifty-seven thousand, eleven".