266849079538 has 16 divisors (see below), whose sum is σ = 401401276416. Its totient is φ = 133049183760.

The previous prime is 266849079503. The next prime is 266849079551. The reversal of 266849079538 is 835970948662.

266849079538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881295 + ... + 1144717.

It is an arithmetic number, because the mean of its divisors is an integer number (25087579776).

Almost surely, 2^266849079538 is an apocalyptic number.

266849079538 is a deficient number, since it is larger than the sum of its proper divisors (134552196878).

266849079538 is a wasteful number, since it uses less digits than its factorization.

266849079538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264849.

The product of its (nonzero) digits is 156764160, while the sum is 67.

The spelling of 266849079538 in words is "two hundred sixty-six billion, eight hundred forty-nine million, seventy-nine thousand, five hundred thirty-eight".