264755137063563 has 128 divisors (see below), whose sum is σ = 421196950241280. Its totient is φ = 164074439808000.

The previous prime is 264755137063531. The next prime is 264755137063567. The reversal of 264755137063563 is 365360731557462.

It is a happy number.

264755137063563 is a `hidden beast` number, since 2 + 6 + 4 + 7 + 5 + 5 + 1 + 3 + 7 + 0 + 63 + 563 = 666.

It is not a de Polignac number, because 264755137063563 - 2⁵ = 264755137063531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 264755137063563.

It is not an unprimeable number, because it can be changed into a prime (264755137063567) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1096532593 + ... + 1096774013.

It is an arithmetic number, because the mean of its divisors is an integer number (3290601173760).

Almost surely, 2^{264755137063563} is an apocalyptic number.

264755137063563 is a deficient number, since it is larger than the sum of its proper divisors (156441813177717).

264755137063563 is a wasteful number, since it uses less digits than its factorization.

264755137063563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242026 (or 242020 counting only the distinct ones).

The product of its (nonzero) digits is 285768000, while the sum is 63.

The spelling of 264755137063563 in words is "two hundred sixty-four trillion, seven hundred fifty-five billion, one hundred thirty-seven million, sixty-three thousand, five hundred sixty-three".