66746206 has 8 divisors (see below), whose sum is σ = 100294560. Its totient is φ = 33314688.

The previous prime is 66746201. The next prime is 66746209. The reversal of 66746206 is 60264766.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66746201) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 27766 + ... + 30073.

It is an arithmetic number, because the mean of its divisors is an integer number (12536820).

Almost surely, 2^66746206 is an apocalyptic number.

66746206 is a deficient number, since it is larger than the sum of its proper divisors (33548354).

66746206 is a wasteful number, since it uses less digits than its factorization.

66746206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58418.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 66746206 is about 8169.8351268554. The cubic root of 66746206 is about 405.6413270462.

It can be divided in two parts, 6674 and 6206, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 66746206 in words is "sixty-six million, seven hundred forty-six thousand, two hundred six".