66085726 has 16 divisors (see below), whose sum is σ = 113927040. Its totient is φ = 28163160.

The previous prime is 66085697. The next prime is 66085729. The reversal of 66085726 is 62758066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66085729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10680 + ... + 15691.

It is an arithmetic number, because the mean of its divisors is an integer number (7120440).

Almost surely, 2^66085726 is an apocalyptic number.

66085726 is a deficient number, since it is larger than the sum of its proper divisors (47841314).

66085726 is a wasteful number, since it uses less digits than its factorization.

66085726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26559.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 66085726 is about 8129.3127630815. The cubic root of 66085726 is about 404.2988957268.

The spelling of 66085726 in words is "sixty-six million, eighty-five thousand, seven hundred twenty-six".