16440450287698 has 8 divisors (see below), whose sum is σ = 24660962952192. Its totient is φ = 8220129303636.

The previous prime is 16440450287633. The next prime is 16440450287699. The reversal of 16440450287698 is 89678205404461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×16440450287698³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16440450287699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47705490 + ... + 48048877.

It is an arithmetic number, because the mean of its divisors is an integer number (3082620369024).

Almost surely, 2^{16440450287698} is an apocalyptic number.

16440450287698 is a deficient number, since it is larger than the sum of its proper divisors (8220512664494).

16440450287698 is an equidigital number, since it uses as much as digits as its factorization.

16440450287698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95840216.

The product of its (nonzero) digits is 92897280, while the sum is 64.

The spelling of 16440450287698 in words is "sixteen trillion, four hundred forty billion, four hundred fifty million, two hundred eighty-seven thousand, six hundred ninety-eight".