266322160 has 40 divisors (see below), whose sum is σ = 666832320. Its totient is φ = 98333952.

The previous prime is 266322137. The next prime is 266322169. The reversal of 266322160 is 61223662.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266322169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127000 + ... + 129079.

It is an arithmetic number, because the mean of its divisors is an integer number (16670808).

Almost surely, 2^266322160 is an apocalyptic number.

266322160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266322160 is an abundant number, since it is smaller than the sum of its proper divisors (400510160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266322160 is a wasteful number, since it uses less digits than its factorization.

266322160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256105 (or 256099 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 266322160 is about 16319.3798901797. The cubic root of 266322160 is about 643.3822890132.

The spelling of 266322160 in words is "two hundred sixty-six million, three hundred twenty-two thousand, one hundred sixty".