210534116120663 has 2 divisors, whose sum is σ = 210534116120664. Its totient is φ = 210534116120662.

The previous prime is 210534116120561. The next prime is 210534116120717. The reversal of 210534116120663 is 366021611435012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210534116120663 - 2⁴² = 206136069609559 is a prime.

It is a super-2 number, since 2×210534116120663² (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 210534116120663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210534116122663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105267058060331 + 105267058060332.

It is an arithmetic number, because the mean of its divisors is an integer number (105267058060332).

Almost surely, 2^{210534116120663} is an apocalyptic number.

210534116120663 is a deficient number, since it is larger than the sum of its proper divisors (1).

210534116120663 is an equidigital number, since it uses as much as digits as its factorization.

210534116120663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 41.

Adding to 210534116120663 its reverse (366021611435012), we get a palindrome (576555727555675).

The spelling of 210534116120663 in words is "two hundred ten trillion, five hundred thirty-four billion, one hundred sixteen million, one hundred twenty thousand, six hundred sixty-three".