6664702611 has 24 divisors (see below), whose sum is σ = 10453257360. Its totient is φ = 3765603072.

The previous prime is 6664702609. The next prime is 6664702619. The reversal of 6664702611 is 1162074666.

It is not a de Polignac number, because 6664702611 - 2¹ = 6664702609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6664702611.

It is not an unprimeable number, because it can be changed into a prime (6664702619) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 241626 + ... + 267791.

It is an arithmetic number, because the mean of its divisors is an integer number (435552390).

Almost surely, 2^6664702611 is an apocalyptic number.

6664702611 is a deficient number, since it is larger than the sum of its proper divisors (3788554749).

6664702611 is a wasteful number, since it uses less digits than its factorization.

6664702611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509523 (or 509516 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 6664702611 is about 81637.6298712793. The cubic root of 6664702611 is about 1881.8872148943.

The spelling of 6664702611 in words is "six billion, six hundred sixty-four million, seven hundred two thousand, six hundred eleven".