218064336213803 has 2 divisors, whose sum is σ = 218064336213804. Its totient is φ = 218064336213802.

The previous prime is 218064336213769. The next prime is 218064336213811. The reversal of 218064336213803 is 308312633460812.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-218064336213803 is a prime.

It is not a weakly prime, because it can be changed into another prime (218064336210803) 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, 109032168106901 + 109032168106902.

It is an arithmetic number, because the mean of its divisors is an integer number (109032168106902).

Almost surely, 2^{218064336213803} is an apocalyptic number.

218064336213803 is a deficient number, since it is larger than the sum of its proper divisors (1).

218064336213803 is an equidigital number, since it uses as much as digits as its factorization.

218064336213803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 50.

The spelling of 218064336213803 in words is "two hundred eighteen trillion, sixty-four billion, three hundred thirty-six million, two hundred thirteen thousand, eight hundred three".