266464563 has 16 divisors (see below), whose sum is σ = 359588352. Its totient is φ = 175500000.

The previous prime is 266464559. The next prime is 266464571. The reversal of 266464563 is 365464662.

It is not a de Polignac number, because 266464563 - 2² = 266464559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (266464543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226968 + ... + 228138.

It is an arithmetic number, because the mean of its divisors is an integer number (22474272).

Almost surely, 2^266464563 is an apocalyptic number.

266464563 is a deficient number, since it is larger than the sum of its proper divisors (93123789).

266464563 is a wasteful number, since it uses less digits than its factorization.

266464563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026.

The product of its digits is 622080, while the sum is 42.

The square root of 266464563 is about 16323.7423098994. The cubic root of 266464563 is about 643.4969411864.

Subtracting 266464563 from its reverse (365464662), we obtain a palindrome (99000099).

The spelling of 266464563 in words is "two hundred sixty-six million, four hundred sixty-four thousand, five hundred sixty-three".