266023134063543 has 32 divisors (see below), whose sum is σ = 360222478801920. Its totient is φ = 174608345640960.

The previous prime is 266023134063457. The next prime is 266023134063619. The reversal of 266023134063543 is 345360431320662.

It is a de Polignac number, because none of the positive numbers 2^k-266023134063543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 266023134063492 and 266023134063501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266023134013543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103106178 + ... + 105654768.

It is an arithmetic number, because the mean of its divisors is an integer number (11256952462560).

Almost surely, 2^{266023134063543} is an apocalyptic number.

266023134063543 is a deficient number, since it is larger than the sum of its proper divisors (94199344738377).

266023134063543 is a wasteful number, since it uses less digits than its factorization.

266023134063543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550759.

The product of its (nonzero) digits is 5598720, while the sum is 48.

The spelling of 266023134063543 in words is "two hundred sixty-six trillion, twenty-three billion, one hundred thirty-four million, sixty-three thousand, five hundred forty-three".