266682069 has 6 divisors (see below), whose sum is σ = 385207446. Its totient is φ = 177788040.

The previous prime is 266682011. The next prime is 266682083. The reversal of 266682069 is 960286662.

It can be written as a sum of positive squares in only one way, i.e., 262926225 + 3755844 = 16215^2 + 1938^2 .

It is not a de Polignac number, because 266682069 - 2¹² = 266677973 is a prime.

It is a super-2 number, since 2×266682069² = 142238651852241522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266682469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14815662 + ... + 14815679.

It is an arithmetic number, because the mean of its divisors is an integer number (64201241).

Almost surely, 2^266682069 is an apocalyptic number.

It is an amenable number.

266682069 is a deficient number, since it is larger than the sum of its proper divisors (118525377).

266682069 is a wasteful number, since it uses less digits than its factorization.

266682069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29631347 (or 29631344 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 266682069 is about 16330.4032099639. The cubic root of 266682069 is about 643.6719818229.

The spelling of 266682069 in words is "two hundred sixty-six million, six hundred eighty-two thousand, sixty-nine".