14432640663664 has 20 divisors (see below), whose sum is σ = 27964332563256. Its totient is φ = 7216038711872.

The previous prime is 14432640663647. The next prime is 14432640663697. The reversal of 14432640663664 is 46636604623441.

It is a super-2 number, since 2×14432640663664² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17178139 + ... + 17998714.

Almost surely, 2^{14432640663664} is an apocalyptic number.

It is an amenable number.

14432640663664 is a deficient number, since it is larger than the sum of its proper divisors (13531691899592).

14432640663664 is a wasteful number, since it uses less digits than its factorization.

14432640663664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35202504 (or 35202498 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 55.

The spelling of 14432640663664 in words is "fourteen trillion, four hundred thirty-two billion, six hundred forty million, six hundred sixty-three thousand, six hundred sixty-four".