266566665662 has 8 divisors (see below), whose sum is σ = 436199998392. Its totient is φ = 121166666200.

The previous prime is 266566665653. The next prime is 266566665697.

266566665662 is nontrivially palindromic in base 10.

266566665662 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 266566665595 and 266566665604.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 6058333289 + ... + 6058333332.

It is an arithmetic number, because the mean of its divisors is an integer number (54524999799).

Almost surely, 2^266566665662 is an apocalyptic number.

266566665662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

266566665662 is a deficient number, since it is larger than the sum of its proper divisors (169633332730).

266566665662 is a wasteful number, since it uses less digits than its factorization.

266566665662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12116666634.

The product of its digits is 167961600, while the sum is 62.

The spelling of 266566665662 in words is "two hundred sixty-six billion, five hundred sixty-six million, six hundred sixty-five thousand, six hundred sixty-two".