66106256 has 10 divisors (see below), whose sum is σ = 128080902. Its totient is φ = 33053120.

The previous prime is 66106247. The next prime is 66106273. The reversal of 66106256 is 65260166.

66106256 is digitally balanced in base 2, 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., 39891856 + 26214400 = 6316^2 + 5120^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2065805 + ... + 2065836.

Almost surely, 2^66106256 is an apocalyptic number.

It is an amenable number.

66106256 is a deficient number, since it is larger than the sum of its proper divisors (61974646).

66106256 is a wasteful number, since it uses less digits than its factorization.

66106256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4131649 (or 4131643 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 66106256 is about 8130.5753793935. The cubic root of 66106256 is about 404.3407574997.

The spelling of 66106256 in words is "sixty-six million, one hundred six thousand, two hundred fifty-six".