450332544664 has 32 divisors (see below), whose sum is σ = 856004152320. Its totient is φ = 222065231616.

The previous prime is 450332544659. The next prime is 450332544667. The reversal of 450332544664 is 466445233054.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450332544667) 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, 12390102 + ... + 12426394.

It is an arithmetic number, because the mean of its divisors is an integer number (26750129760).

Almost surely, 2^450332544664 is an apocalyptic number.

It is an amenable number.

450332544664 is a deficient number, since it is larger than the sum of its proper divisors (405671607656).

450332544664 is a wasteful number, since it uses less digits than its factorization.

450332544664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57619 (or 57615 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 46.

The spelling of 450332544664 in words is "four hundred fifty billion, three hundred thirty-two million, five hundred forty-four thousand, six hundred sixty-four".