266056166 has 8 divisors (see below), whose sum is σ = 400637880. Its totient is φ = 132510208.

The previous prime is 266056163. The next prime is 266056169. The reversal of 266056166 is 661650662.

It is an interprime number because it is at equal distance from previous prime (266056163) and next prime (266056169).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266056163) by changing a digit.

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, 258296 + ... + 259323.

It is an arithmetic number, because the mean of its divisors is an integer number (50079735).

Almost surely, 2^266056166 is an apocalyptic number.

266056166 is a deficient number, since it is larger than the sum of its proper divisors (134581714).

266056166 is a wasteful number, since it uses less digits than its factorization.

266056166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517878.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 266056166 is about 16311.2282186229. The cubic root of 266056166 is about 643.1680211565.

The spelling of 266056166 in words is "two hundred sixty-six million, fifty-six thousand, one hundred sixty-six".