266051806087 has 8 divisors (see below), whose sum is σ = 268692548816. Its totient is φ = 263423040192.

The previous prime is 266051806079. The next prime is 266051806117. The reversal of 266051806087 is 780608150662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 266051806087 - 2³ = 266051806079 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 266051806087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266051806057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2949558 + ... + 3038419.

It is an arithmetic number, because the mean of its divisors is an integer number (33586568602).

Almost surely, 2^266051806087 is an apocalyptic number.

266051806087 is a deficient number, since it is larger than the sum of its proper divisors (2640742729).

266051806087 is a wasteful number, since it uses less digits than its factorization.

266051806087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5988417.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 266051806087 in words is "two hundred sixty-six billion, fifty-one million, eight hundred six thousand, eighty-seven".