266054805 has 12 divisors (see below), whose sum is σ = 461161740. Its totient is φ = 141895872.

The previous prime is 266054791. The next prime is 266054813. The reversal of 266054805 is 508450662.

266054805 is a `hidden beast` number, since 2 + 6 + 605 + 48 + 0 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 97002801 + 169052004 = 9849^2 + 13002^2 .

It is not a de Polignac number, because 266054805 - 2⁵ = 266054773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 266054805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2956120 + ... + 2956209.

It is an arithmetic number, because the mean of its divisors is an integer number (38430145).

Almost surely, 2^266054805 is an apocalyptic number.

It is an amenable number.

266054805 is a deficient number, since it is larger than the sum of its proper divisors (195106935).

266054805 is a wasteful number, since it uses less digits than its factorization.

266054805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5912340 (or 5912337 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 266054805 is about 16311.1864988418. The cubic root of 266054805 is about 643.1669244543.

The spelling of 266054805 in words is "two hundred sixty-six million, fifty-four thousand, eight hundred five".