440531505351664 has 40 divisors (see below), whose sum is σ = 854471714576000. Its totient is φ = 220022683183296.

The previous prime is 440531505351659. The next prime is 440531505351683. The reversal of 440531505351664 is 466153505135044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1148764147 + ... + 1149147565.

It is an arithmetic number, because the mean of its divisors is an integer number (21361792864400).

Almost surely, 2^{440531505351664} is an apocalyptic number.

It is an amenable number.

440531505351664 is a deficient number, since it is larger than the sum of its proper divisors (413940209224336).

440531505351664 is a wasteful number, since it uses less digits than its factorization.

440531505351664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462485 (or 462479 counting only the distinct ones).

The product of its (nonzero) digits is 12960000, while the sum is 52.

The spelling of 440531505351664 in words is "four hundred forty trillion, five hundred thirty-one billion, five hundred five million, three hundred fifty-one thousand, six hundred sixty-four".