266204854079 has 4 divisors (see below), whose sum is σ = 272697655440. Its totient is φ = 259712052720.

The previous prime is 266204854073. The next prime is 266204854081. The reversal of 266204854079 is 970458402662.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 266204854079 - 2³² = 261909886783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 266204854079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266204854073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3246400619 + ... + 3246400700.

It is an arithmetic number, because the mean of its divisors is an integer number (68174413860).

Almost surely, 2^266204854079 is an apocalyptic number.

266204854079 is a deficient number, since it is larger than the sum of its proper divisors (6492801361).

266204854079 is an equidigital number, since it uses as much as digits as its factorization.

266204854079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6492801360.

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 266204854079 in words is "two hundred sixty-six billion, two hundred four million, eight hundred fifty-four thousand, seventy-nine".