266226345 has 80 divisors (see below), whose sum is σ = 595064448. Its totient is φ = 110626560.

The previous prime is 266226269. The next prime is 266226353. The reversal of 266226345 is 543622662.

266226345 is a `hidden beast` number, since 26 + 622 + 6 + 3 + 4 + 5 = 666.

It is not a de Polignac number, because 266226345 - 2⁷ = 266226217 is a prime.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 26917 + ... + 35453.

Almost surely, 2^266226345 is an apocalyptic number.

It is an amenable number.

266226345 is an abundant number, since it is smaller than the sum of its proper divisors (328838103).

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

266226345 is a wasteful number, since it uses less digits than its factorization.

266226345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8572 (or 8563 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 266226345 is about 16316.4440059714. Note that the first 3 decimals coincide. The cubic root of 266226345 is about 643.3051229871.

The spelling of 266226345 in words is "two hundred sixty-six million, two hundred twenty-six thousand, three hundred forty-five".