6664556411 has 8 divisors (see below), whose sum is σ = 6717883200. Its totient is φ = 6611306760.

The previous prime is 6664556363. The next prime is 6664556419. The reversal of 6664556411 is 1146554666.

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 6664556411 - 2¹⁴ = 6664540027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6664556419) 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, 160880 + ... + 198018.

It is an arithmetic number, because the mean of its divisors is an integer number (839735400).

Almost surely, 2^6664556411 is an apocalyptic number.

6664556411 is a deficient number, since it is larger than the sum of its proper divisors (53326789).

6664556411 is a wasteful number, since it uses less digits than its factorization.

6664556411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38569.

The product of its digits is 518400, while the sum is 44.

The square root of 6664556411 is about 81636.7344459588. The cubic root of 6664556411 is about 1881.8734541441.

The spelling of 6664556411 in words is "six billion, six hundred sixty-four million, five hundred fifty-six thousand, four hundred eleven".