6646954596466 has 4 divisors (see below), whose sum is σ = 9970431894702. Its totient is φ = 3323477298232.

The previous prime is 6646954596461. The next prime is 6646954596467.

6646954596466 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5506695823225 + 1140258773241 = 2346635^2 + 1067829^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6646954596392 and 6646954596401.

It is not an unprimeable number, because it can be changed into a prime (6646954596461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1661738649115 + ... + 1661738649118.

Almost surely, 2^{6646954596466} is an apocalyptic number.

6646954596466 is a deficient number, since it is larger than the sum of its proper divisors (3323477298236).

6646954596466 is a wasteful number, since it uses less digits than its factorization.

6646954596466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3323477298235.

The product of its digits is 6046617600, while the sum is 76.

The spelling of 6646954596466 in words is "six trillion, six hundred forty-six billion, nine hundred fifty-four million, five hundred ninety-six thousand, four hundred sixty-six".