266806682 has 8 divisors (see below), whose sum is σ = 400301652. Its totient is φ = 133372800.

The previous prime is 266806681. The next prime is 266806703. The reversal of 266806682 is 286608662.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 223233481 + 43573201 = 14941^2 + 6601^2 .

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

It is not an unprimeable number, because it can be changed into a prime (266806681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2069 + ... + 23192.

Almost surely, 2^266806682 is an apocalyptic number.

266806682 is a deficient number, since it is larger than the sum of its proper divisors (133494970).

266806682 is a wasteful number, since it uses less digits than its factorization.

266806682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30544.

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 266806682 is about 16334.2181324972. The cubic root of 266806682 is about 643.7722227915.

The spelling of 266806682 in words is "two hundred sixty-six million, eight hundred six thousand, six hundred eighty-two".