266416461 has 12 divisors (see below), whose sum is σ = 405077920. Its totient is φ = 168262920.

The previous prime is 266416453. The next prime is 266416477. The reversal of 266416461 is 164614662.

266416461 is a `hidden beast` number, since 2 + 6 + 6 + 4 + 1 + 646 + 1 = 666.

It is not a de Polignac number, because 266416461 - 2³ = 266416453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266416421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 778825 + ... + 779166.

Almost surely, 2^266416461 is an apocalyptic number.

It is an amenable number.

266416461 is a deficient number, since it is larger than the sum of its proper divisors (138661459).

266416461 is a wasteful number, since it uses less digits than its factorization.

266416461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558016 (or 1558013 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 266416461 is about 16322.2688680220. The cubic root of 266416461 is about 643.4582176475.

The spelling of 266416461 in words is "two hundred sixty-six million, four hundred sixteen thousand, four hundred sixty-one".