16440882097 has 2 divisors, whose sum is σ = 16440882098. Its totient is φ = 16440882096.

The previous prime is 16440882091. The next prime is 16440882113. The reversal of 16440882097 is 79028804461.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15118177936 + 1322704161 = 122956^2 + 36369^2 .

It is a cyclic number.

It is not a de Polignac number, because 16440882097 - 2³ = 16440882089 is a prime.

It is a super-3 number, since 3×16440882097³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16440882097.

It is not a weakly prime, because it can be changed into another prime (16440882091) 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 as a sum of consecutive naturals, namely, 8220441048 + 8220441049.

It is an arithmetic number, because the mean of its divisors is an integer number (8220441049).

Almost surely, 2^16440882097 is an apocalyptic number.

It is an amenable number.

16440882097 is a deficient number, since it is larger than the sum of its proper divisors (1).

16440882097 is an equidigital number, since it uses as much as digits as its factorization.

16440882097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 16440882097 in words is "sixteen billion, four hundred forty million, eight hundred eighty-two thousand, ninety-seven".