266745064 has 8 divisors (see below), whose sum is σ = 500147010. Its totient is φ = 133372528.

The previous prime is 266745019. The next prime is 266745071. The reversal of 266745064 is 460547662.

266745064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 199996164 + 66748900 = 14142^2 + 8170^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16671559 + ... + 16671574.

Almost surely, 2^266745064 is an apocalyptic number.

It is an amenable number.

266745064 is a deficient number, since it is larger than the sum of its proper divisors (233401946).

266745064 is a wasteful number, since it uses less digits than its factorization.

266745064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33343139 (or 33343135 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

The square root of 266745064 is about 16332.3318604540. The cubic root of 266745064 is about 643.7226600511.

The spelling of 266745064 in words is "two hundred sixty-six million, seven hundred forty-five thousand, sixty-four".