266868605 has 16 divisors (see below), whose sum is σ = 330173184. Its totient is φ = 206919360.

The previous prime is 266868599. The next prime is 266868629. The reversal of 266868605 is 506868662.

It is a happy number.

It is not a de Polignac number, because 266868605 - 2¹² = 266864509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 266868605.

It is a congruent number.

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, 47474 + ... + 52796.

It is an arithmetic number, because the mean of its divisors is an integer number (20635824).

Almost surely, 2^266868605 is an apocalyptic number.

It is an amenable number.

266868605 is a deficient number, since it is larger than the sum of its proper divisors (63304579).

266868605 is a wasteful number, since it uses less digits than its factorization.

266868605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5636.

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 266868605 is about 16336.1135218876. The cubic root of 266868605 is about 643.8220231730.

The spelling of 266868605 in words is "two hundred sixty-six million, eight hundred sixty-eight thousand, six hundred five".