263216706653 has 2 divisors, whose sum is σ = 263216706654. Its totient is φ = 263216706652.

The previous prime is 263216706631. The next prime is 263216706659. The reversal of 263216706653 is 356607612362.

263216706653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258579369049 + 4637337604 = 508507^2 + 68098^2 .

It is a cyclic number.

It is not a de Polignac number, because 263216706653 - 2¹⁶ = 263216641117 is a prime.

It is a super-2 number, since 2×263216706653² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 263216706598 and 263216706607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263216706659) 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, 131608353326 + 131608353327.

It is an arithmetic number, because the mean of its divisors is an integer number (131608353327).

Almost surely, 2^263216706653 is an apocalyptic number.

It is an amenable number.

263216706653 is a deficient number, since it is larger than the sum of its proper divisors (1).

263216706653 is an equidigital number, since it uses as much as digits as its factorization.

263216706653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 47.

The spelling of 263216706653 in words is "two hundred sixty-three billion, two hundred sixteen million, seven hundred six thousand, six hundred fifty-three".