3664648464664 has 64 divisors (see below), whose sum is σ = 7515728532000. Its totient is φ = 1661338398720.

The previous prime is 3664648464661. The next prime is 3664648464683. The reversal of 3664648464664 is 4664648464663.

It is a self number, because there is not a number n which added to its sum of digits gives 3664648464664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3664648464661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288253572 + ... + 288266284.

Almost surely, 2^{3664648464664} is an apocalyptic number.

It is an amenable number.

3664648464664 is an abundant number, since it is smaller than the sum of its proper divisors (3851080067336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3664648464664 is a wasteful number, since it uses less digits than its factorization.

3664648464664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21148 (or 21144 counting only the distinct ones).

The product of its digits is 1146617856, while the sum is 67.

Subtracting 3664648464664 from its reverse (4664648464663), we obtain a palindrome (999999999999).

The spelling of 3664648464664 in words is "three trillion, six hundred sixty-four billion, six hundred forty-eight million, four hundred sixty-four thousand, six hundred sixty-four".