61067666 has 16 divisors (see below), whose sum is σ = 100459008. Its totient is φ = 27610800.

The previous prime is 61067663. The next prime is 61067681. The reversal of 61067666 is 66676016.

It is a happy number.

61067666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61067663) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3065 + ... + 11468.

It is an arithmetic number, because the mean of its divisors is an integer number (6278688).

Almost surely, 2^61067666 is an apocalyptic number.

61067666 is a deficient number, since it is larger than the sum of its proper divisors (39391342).

61067666 is a wasteful number, since it uses less digits than its factorization.

61067666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14737.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 61067666 is about 7814.5803470180. The cubic root of 61067666 is about 393.7952202705.

The spelling of 61067666 in words is "sixty-one million, sixty-seven thousand, six hundred sixty-six".