216045366404419 has 2 divisors, whose sum is σ = 216045366404420. Its totient is φ = 216045366404418.

The previous prime is 216045366404383. The next prime is 216045366404501. The reversal of 216045366404419 is 914404663540612.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216045366404419 - 2⁷ = 216045366404291 is a prime.

It is a super-2 number, since 2×216045366404419² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 216045366404419.

It is not a weakly prime, because it can be changed into another prime (216045366404519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108022683202209 + 108022683202210.

It is an arithmetic number, because the mean of its divisors is an integer number (108022683202210).

Almost surely, 2^{216045366404419} is an apocalyptic number.

216045366404419 is a deficient number, since it is larger than the sum of its proper divisors (1).

216045366404419 is an equidigital number, since it uses as much as digits as its factorization.

216045366404419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14929920, while the sum is 55.

The spelling of 216045366404419 in words is "two hundred sixteen trillion, forty-five billion, three hundred sixty-six million, four hundred four thousand, four hundred nineteen".