266516662063 has 2 divisors, whose sum is σ = 266516662064. Its totient is φ = 266516662062.

The previous prime is 266516662051. The next prime is 266516662129. The reversal of 266516662063 is 360266615662.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266516662063 is a prime.

It is a super-2 number, since 2×266516662063² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 266516661998 and 266516662016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266516602063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133258331031 + 133258331032.

It is an arithmetic number, because the mean of its divisors is an integer number (133258331032).

Almost surely, 2^266516662063 is an apocalyptic number.

266516662063 is a deficient number, since it is larger than the sum of its proper divisors (1).

266516662063 is an equidigital number, since it uses as much as digits as its factorization.

266516662063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 49.

The spelling of 266516662063 in words is "two hundred sixty-six billion, five hundred sixteen million, six hundred sixty-two thousand, sixty-three".