16440882091 has 2 divisors, whose sum is σ = 16440882092. Its totient is φ = 16440882090.

The previous prime is 16440882089. The next prime is 16440882097. The reversal of 16440882091 is 19028804461.

It is a weak prime.

It is an emirp because it is prime and its reverse (19028804461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16440882091 - 2¹ = 16440882089 is a prime.

It is a super-3 number, since 3×16440882091³ (a number of 32 digits) contains 333 as substring.

Together with 16440882089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16440882097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8220441045 + 8220441046.

It is an arithmetic number, because the mean of its divisors is an integer number (8220441046).

Almost surely, 2^16440882091 is an apocalyptic number.

16440882091 is a deficient number, since it is larger than the sum of its proper divisors (1).

16440882091 is an equidigital number, since it uses as much as digits as its factorization.

16440882091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 16440882091 in words is "sixteen billion, four hundred forty million, eight hundred eighty-two thousand, ninety-one".