16216983491 has 2 divisors, whose sum is σ = 16216983492. Its totient is φ = 16216983490.

The previous prime is 16216983481. The next prime is 16216983511. The reversal of 16216983491 is 19438961261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16216983491 - 2⁶ = 16216983427 is a prime.

It is not a weakly prime, because it can be changed into another prime (16216983401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8108491745 + 8108491746.

It is an arithmetic number, because the mean of its divisors is an integer number (8108491746).

Almost surely, 2^16216983491 is an apocalyptic number.

16216983491 is a deficient number, since it is larger than the sum of its proper divisors (1).

16216983491 is an equidigital number, since it uses as much as digits as its factorization.

16216983491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 50.

The spelling of 16216983491 in words is "sixteen billion, two hundred sixteen million, nine hundred eighty-three thousand, four hundred ninety-one".