6466846486646 has 16 divisors (see below), whose sum is σ = 11938793514144. Its totient is φ = 2558312895744.

The previous prime is 6466846486643. The next prime is 6466846486663.

6466846486646 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6466846486643) 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, 17766061595 + ... + 17766061958.

It is an arithmetic number, because the mean of its divisors is an integer number (746174594634).

Almost surely, 2^{6466846486646} is an apocalyptic number.

6466846486646 is a deficient number, since it is larger than the sum of its proper divisors (5471947027498).

6466846486646 is a wasteful number, since it uses less digits than its factorization.

6466846486646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35532123575.

The product of its digits is 4586471424, while the sum is 74.

The spelling of 6466846486646 in words is "six trillion, four hundred sixty-six billion, eight hundred forty-six million, four hundred eighty-six thousand, six hundred forty-six".