6647667466 has 32 divisors (see below), whose sum is σ = 11247929856. Its totient is φ = 2919240000.

The previous prime is 6647667461. The next prime is 6647667487.

6647667466 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×6647667466² = 88382965477029722312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6647667466.

It is not an unprimeable number, because it can be changed into a prime (6647667461) 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, 410116 + ... + 426016.

It is an arithmetic number, because the mean of its divisors is an integer number (351497808).

Almost surely, 2^6647667466 is an apocalyptic number.

6647667466 is a deficient number, since it is larger than the sum of its proper divisors (4600262390).

6647667466 is a wasteful number, since it uses less digits than its factorization.

6647667466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16558.

The product of its digits is 36578304, while the sum is 58.

The square root of 6647667466 is about 81533.2292136157. The cubic root of 6647667466 is about 1880.2824634060.

The spelling of 6647667466 in words is "six billion, six hundred forty-seven million, six hundred sixty-seven thousand, four hundred sixty-six".