266545545 has 48 divisors (see below), whose sum is σ = 498936960. Its totient is φ = 121153536.

The previous prime is 266545537. The next prime is 266545549. The reversal of 266545545 is 545545662.

It is a happy number.

It is not a de Polignac number, because 266545545 - 2³ = 266545537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 266545497 and 266545506.

It is not an unprimeable number, because it can be changed into a prime (266545549) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140916 + ... + 142794.

It is an arithmetic number, because the mean of its divisors is an integer number (10394520).

Almost surely, 2^266545545 is an apocalyptic number.

It is an amenable number.

266545545 is a deficient number, since it is larger than the sum of its proper divisors (232391415).

266545545 is a wasteful number, since it uses less digits than its factorization.

266545545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094 (or 2087 counting only the distinct ones).

The product of its digits is 720000, while the sum is 42.

The square root of 266545545 is about 16326.2226188424. Note that the first 3 decimals coincide. The cubic root of 266545545 is about 643.5621235762.

The spelling of 266545545 in words is "two hundred sixty-six million, five hundred forty-five thousand, five hundred forty-five".