266804945 has 16 divisors (see below), whose sum is σ = 364459392. Its totient is φ = 185602560.

The previous prime is 266804929. The next prime is 266804957. The reversal of 266804945 is 549408662.

It is not a de Polignac number, because 266804945 - 2⁴ = 266804929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 266804896 and 266804905.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104192 + ... + 106721.

It is an arithmetic number, because the mean of its divisors is an integer number (22778712).

Almost surely, 2^266804945 is an apocalyptic number.

It is an amenable number.

266804945 is a deficient number, since it is larger than the sum of its proper divisors (97654447).

266804945 is a wasteful number, since it uses less digits than its factorization.

266804945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210952.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 266804945 is about 16334.1649618216. The cubic root of 266804945 is about 643.7708257315.

The spelling of 266804945 in words is "two hundred sixty-six million, eight hundred four thousand, nine hundred forty-five".