266306645 has 16 divisors (see below), whose sum is σ = 348969600. Its totient is φ = 193483200.

The previous prime is 266306633. The next prime is 266306659. The reversal of 266306645 is 546603662.

It is not a de Polignac number, because 266306645 - 2⁸ = 266306389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 266306599 and 266306608.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 75215 + ... + 78675.

It is an arithmetic number, because the mean of its divisors is an integer number (21810600).

Almost surely, 2^266306645 is an apocalyptic number.

It is an amenable number.

266306645 is a deficient number, since it is larger than the sum of its proper divisors (82662955).

266306645 is a wasteful number, since it uses less digits than its factorization.

266306645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4876.

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 266306645 is about 16318.9045281845. The cubic root of 266306645 is about 643.3697950346.

The spelling of 266306645 in words is "two hundred sixty-six million, three hundred six thousand, six hundred forty-five".