6646116466 has 16 divisors (see below), whose sum is σ = 10977107040. Its totient is φ = 2992727680.

The previous prime is 6646116461. The next prime is 6646116481.

6646116466 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (6646116461) 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, 1409311 + ... + 1414018.

It is an arithmetic number, because the mean of its divisors is an integer number (686069190).

Almost surely, 2^6646116466 is an apocalyptic number.

6646116466 is a deficient number, since it is larger than the sum of its proper divisors (4330990574).

6646116466 is a wasteful number, since it uses less digits than its factorization.

6646116466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823449.

The product of its digits is 746496, while the sum is 46.

The square root of 6646116466 is about 81523.7171993525. The cubic root of 6646116466 is about 1880.1362193812.

The spelling of 6646116466 in words is "six billion, six hundred forty-six million, one hundred sixteen thousand, four hundred sixty-six".