266460563 has 2 divisors, whose sum is σ = 266460564. Its totient is φ = 266460562.

The previous prime is 266460559. The next prime is 266460577. The reversal of 266460563 is 365064662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 266460563 - 2² = 266460559 is a prime.

It is not a weakly prime, because it can be changed into another prime (266460263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133230281 + 133230282.

It is an arithmetic number, because the mean of its divisors is an integer number (133230282).

Almost surely, 2^266460563 is an apocalyptic number.

266460563 is a deficient number, since it is larger than the sum of its proper divisors (1).

266460563 is an equidigital number, since it uses as much as digits as its factorization.

266460563 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 38.

The square root of 266460563 is about 16323.6197885150. The cubic root of 266460563 is about 643.4937212452.

The spelling of 266460563 in words is "two hundred sixty-six million, four hundred sixty thousand, five hundred sixty-three".