6466336646 has 96 divisors (see below), whose sum is σ = 12676435200. Its totient is φ = 2444904000.

The previous prime is 6466336637. The next prime is 6466336649.

6466336646 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6466336594 and 6466336603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6466336649) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9224096 + ... + 9224796.

It is an arithmetic number, because the mean of its divisors is an integer number (132046200).

Almost surely, 2^6466336646 is an apocalyptic number.

6466336646 is a deficient number, since it is larger than the sum of its proper divisors (6210098554).

6466336646 is a wasteful number, since it uses less digits than its factorization.

6466336646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 963 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 50.

The square root of 6466336646 is about 80413.5352164050. The cubic root of 6466336646 is about 1863.0282352935.

The spelling of 6466336646 in words is "six billion, four hundred sixty-six million, three hundred thirty-six thousand, six hundred forty-six".