16440450287705 has 16 divisors (see below), whose sum is σ = 20651775095808. Its totient is φ = 12548821656000.

The previous prime is 16440450287699. The next prime is 16440450287713. The reversal of 16440450287705 is 50778205404461.

It is a happy number.

It is not a de Polignac number, because 16440450287705 - 2⁴⁰ = 15340938659929 is a prime.

It is a super-3 number, since 3×16440450287705³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 746942666 + ... + 746964675.

It is an arithmetic number, because the mean of its divisors is an integer number (1290735943488).

Almost surely, 2^{16440450287705} is an apocalyptic number.

It is an amenable number.

16440450287705 is a deficient number, since it is larger than the sum of its proper divisors (4211324808103).

16440450287705 is a wasteful number, since it uses less digits than its factorization.

16440450287705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493907448.

The product of its (nonzero) digits is 7526400, while the sum is 53.

The spelling of 16440450287705 in words is "sixteen trillion, four hundred forty billion, four hundred fifty million, two hundred eighty-seven thousand, seven hundred five".