16218028126919 has 2 divisors, whose sum is σ = 16218028126920. Its totient is φ = 16218028126918.

The previous prime is 16218028126903. The next prime is 16218028126943. The reversal of 16218028126919 is 91962182081261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16218028126919 - 2⁴ = 16218028126903 is a prime.

It is a super-2 number, since 2×16218028126919² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16218028116919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8109014063459 + 8109014063460.

It is an arithmetic number, because the mean of its divisors is an integer number (8109014063460).

Almost surely, 2^{16218028126919} is an apocalyptic number.

16218028126919 is a deficient number, since it is larger than the sum of its proper divisors (1).

16218028126919 is an equidigital number, since it uses as much as digits as its factorization.

16218028126919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 56.

The spelling of 16218028126919 in words is "sixteen trillion, two hundred eighteen billion, twenty-eight million, one hundred twenty-six thousand, nine hundred nineteen".