266036131663 has 2 divisors, whose sum is σ = 266036131664. Its totient is φ = 266036131662.

The previous prime is 266036131661. The next prime is 266036131703. The reversal of 266036131663 is 366131630662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 266036131663 - 2¹ = 266036131661 is a prime.

It is a super-2 number, since 2×266036131663² (a number of 24 digits) contains 22 as substring.

Together with 266036131661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266036131661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133018065831 + 133018065832.

It is an arithmetic number, because the mean of its divisors is an integer number (133018065832).

Almost surely, 2^266036131663 is an apocalyptic number.

266036131663 is a deficient number, since it is larger than the sum of its proper divisors (1).

266036131663 is an equidigital number, since it uses as much as digits as its factorization.

266036131663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 43.

The spelling of 266036131663 in words is "two hundred sixty-six billion, thirty-six million, one hundred thirty-one thousand, six hundred sixty-three".