266465641 has 16 divisors (see below), whose sum is σ = 290707200. Its totient is φ = 242782848.

The previous prime is 266465611. The next prime is 266465663. The reversal of 266465641 is 146564662.

It is a cyclic number.

It is not a de Polignac number, because 266465641 - 2¹³ = 266457449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 266465594 and 266465603.

It is not an unprimeable number, because it can be changed into a prime (266465611) by changing a digit.

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, 431565 + ... + 432181.

It is an arithmetic number, because the mean of its divisors is an integer number (18169200).

Almost surely, 2^266465641 is an apocalyptic number.

It is an amenable number.

266465641 is a deficient number, since it is larger than the sum of its proper divisors (24241559).

266465641 is a wasteful number, since it uses less digits than its factorization.

266465641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008.

The product of its digits is 207360, while the sum is 40.

The square root of 266465641 is about 16323.7753292552. The cubic root of 266465641 is about 643.4978089550.

The spelling of 266465641 in words is "two hundred sixty-six million, four hundred sixty-five thousand, six hundred forty-one".