6643773466 has 16 divisors (see below), whose sum is σ = 11033894880. Its totient is φ = 2974823280.

The previous prime is 6643773457. The next prime is 6643773469.

6643773466 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (6643773469) 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, 2252181 + ... + 2255128.

It is an arithmetic number, because the mean of its divisors is an integer number (689618430).

Almost surely, 2^6643773466 is an apocalyptic number.

6643773466 is a deficient number, since it is larger than the sum of its proper divisors (4390121414).

6643773466 is a wasteful number, since it uses less digits than its factorization.

6643773466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4507389.

The product of its digits is 9144576, while the sum is 52.

The square root of 6643773466 is about 81509.3458813160. The cubic root of 6643773466 is about 1879.9152544039.

The spelling of 6643773466 in words is "six billion, six hundred forty-three million, seven hundred seventy-three thousand, four hundred sixty-six".