266056436 has 6 divisors (see below), whose sum is σ = 465598770. Its totient is φ = 133028216.

The previous prime is 266056391. The next prime is 266056447. The reversal of 266056436 is 634650662.

266056436 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 195832036 + 70224400 = 13994^2 + 8380^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 266056436.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 33257051 + ... + 33257058.

It is an arithmetic number, because the mean of its divisors is an integer number (77599795).

Almost surely, 2^266056436 is an apocalyptic number.

It is an amenable number.

266056436 is a deficient number, since it is larger than the sum of its proper divisors (199542334).

266056436 is a wasteful number, since it uses less digits than its factorization.

266056436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66514113 (or 66514111 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 266056436 is about 16311.2364951281. The cubic root of 266056436 is about 643.1682387238.

The spelling of 266056436 in words is "two hundred sixty-six million, fifty-six thousand, four hundred thirty-six".