6648564658466 has 8 divisors (see below), whose sum is σ = 9973383593040. Its totient is φ = 3324103460788.

The previous prime is 6648564658409. The next prime is 6648564658501.

6648564658466 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6648564658393 and 6648564658402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89387756 + ... + 89462103.

It is an arithmetic number, because the mean of its divisors is an integer number (1246672949130).

Almost surely, 2^{6648564658466} is an apocalyptic number.

6648564658466 is a deficient number, since it is larger than the sum of its proper divisors (3324818934574).

6648564658466 is a wasteful number, since it uses less digits than its factorization.

6648564658466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178868448.

The product of its digits is 4777574400, while the sum is 74.

The spelling of 6648564658466 in words is "six trillion, six hundred forty-eight billion, five hundred sixty-four million, six hundred fifty-eight thousand, four hundred sixty-six".