266564097163 has 16 divisors (see below), whose sum is σ = 328215234816. Its totient is φ = 210820206240.

The previous prime is 266564097161. The next prime is 266564097167. The reversal of 266564097163 is 361790465662.

It is a happy number.

It is not a de Polignac number, because 266564097163 - 2¹ = 266564097161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (266564097161) 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, 388081 + ... + 826882.

It is an arithmetic number, because the mean of its divisors is an integer number (20513452176).

Almost surely, 2^266564097163 is an apocalyptic number.

266564097163 is a deficient number, since it is larger than the sum of its proper divisors (61651137653).

266564097163 is a wasteful number, since it uses less digits than its factorization.

266564097163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217394.

The product of its (nonzero) digits is 9797760, while the sum is 55.

The spelling of 266564097163 in words is "two hundred sixty-six billion, five hundred sixty-four million, ninety-seven thousand, one hundred sixty-three".