266893061 has 4 divisors (see below), whose sum is σ = 276096300. Its totient is φ = 257689824.

The previous prime is 266893031. The next prime is 266893073. The reversal of 266893061 is 160398662.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 176757025 + 90136036 = 13295^2 + 9494^2 .

It is not a de Polignac number, because 266893061 - 2¹⁰ = 266892037 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 (266893021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4601576 + ... + 4601633.

It is an arithmetic number, because the mean of its divisors is an integer number (69024075).

Almost surely, 2^266893061 is an apocalyptic number.

It is an amenable number.

266893061 is a deficient number, since it is larger than the sum of its proper divisors (9203239).

266893061 is an equidigital number, since it uses as much as digits as its factorization.

266893061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9203238.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 266893061 is about 16336.8620303900. The cubic root of 266893061 is about 643.8416893186.

The spelling of 266893061 in words is "two hundred sixty-six million, eight hundred ninety-three thousand, sixty-one".