6689622611 has 16 divisors (see below), whose sum is σ = 8067340800. Its totient is φ = 5423022528.

The previous prime is 6689622539. The next prime is 6689622631. The reversal of 6689622611 is 1162269866.

It is a de Polignac number, because none of the positive numbers 2^k-6689622611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6689622631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219101 + ... + 247758.

It is an arithmetic number, because the mean of its divisors is an integer number (504208800).

Almost surely, 2^6689622611 is an apocalyptic number.

6689622611 is a deficient number, since it is larger than the sum of its proper divisors (1377718189).

6689622611 is a wasteful number, since it uses less digits than its factorization.

6689622611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466978.

The product of its digits is 373248, while the sum is 47.

The square root of 6689622611 is about 81790.1131616774. The cubic root of 6689622611 is about 1884.2298200499.

The spelling of 6689622611 in words is "six billion, six hundred eighty-nine million, six hundred twenty-two thousand, six hundred eleven".