266413765 has 8 divisors (see below), whose sum is σ = 319929120. Its totient is φ = 212975952.

The previous prime is 266413759. The next prime is 266413769. The reversal of 266413765 is 567314662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 266413765 - 2¹⁵ = 266380997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266413769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11535 + ... + 25804.

It is an arithmetic number, because the mean of its divisors is an integer number (39991140).

Almost surely, 2^266413765 is an apocalyptic number.

It is an amenable number.

266413765 is a deficient number, since it is larger than the sum of its proper divisors (53515355).

266413765 is a wasteful number, since it uses less digits than its factorization.

266413765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38771.

The product of its digits is 181440, while the sum is 40.

The square root of 266413765 is about 16322.1862812553. The cubic root of 266413765 is about 643.4560471494.

The spelling of 266413765 in words is "two hundred sixty-six million, four hundred thirteen thousand, seven hundred sixty-five".